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Question
২.৫ মিটার বর্গাকার খোলা একটি চৌবাচ্চায় ২৮৯০০লিটার পানি ধরে । এর ভিতরে অ্যালুমিনিয়ামের পাত লাগাতে প্রতি বর্গ মিটারে ৫ টাকা হিসাবে মোট কত খরচ পড়বে?
২২৯.৬০ টাকা
১২৯.৯০ টাকা
৬০০টাকা
২২৭.৮০ টাকা
কোনটিই নয়
ANSWER : 5
Descrption
<h2 style = "font - size: 18px; margin: 0px; font - family: 'Helvetica Neue', Helvetica, Arial, sans - serif, serif, SolaimanLipi, Bangla, AdorshoLipi, Bensen, BenSenHandwriting, Kalpurush, Sagar, Siyamrupali; padding - top: 0px; padding - right: 4px; padding - bottom: 0px; color: #616161; font - weight: normal; border - radius: 2px; white - space: pre - wrap; background - color: #ffffff; min - height: 30px;">মনে করি, বর্গাকৃতি চেীবাচ্চাটির তলার এক বাহুর দৈর্ঘ্য a সে.মি :. বর্গাকৃতি চেীবাচ্চাটির তলার ক্ষেত্রফল <span id = "MathJax - Element - 1 - Frame" class = "MathJax" style = "margin: 0px; padding: 0px; display: inline; line - height: normal; word - spacing: normal; overflow - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; border: 0px; position: relative; color: #333333 !important;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML"><mstyle displaystyle = "true"><msup><mi>a</mi><mn>2</mn></msup></mstyle></math>"><span id = "MathJax - Span - 1" class = "math" style = "margin: 0px; padding: 0px; color: #616161; transition: none 0s ease 0s; display: inline - block; position: static; border: 0px; vertical - align: 0px; line - height: normal; width: 1.16em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 0.975em; height: 0px; font - size: 21.6px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.206em, 1000.98em, 2.363em, - 999.998em); top: - 2.22em; left: 0em;"><span id = "MathJax - Span - 2" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 3" class = "mstyle" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 4" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 5" class = "msup" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 0.975em; height: 0px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(3.382em, 1000.51em, 4.123em, - 999.998em); top: - 3.979em; left: 0em;"><span id = "MathJax - Span - 6" class = "mi" style = "font - family: MathJax_Math - italic; margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;">a</span></span><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 4.396em; left: 0.512em;"><span id = "MathJax - Span - 7" class = "mn" style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 15.2712px;">2</span></span></span></span></span></span></span></span></span></span></span> বর্গ সে.মি দেওয়া আছে, চেীবাচ্চাটির গভীরতা ২.৫ মিটার = (২.৫×১০০) সে.মি</h2> <h2 style = "font - size: 18px; margin: 0px; font - family: 'Helvetica Neue', Helvetica, Arial, sans - serif, serif, SolaimanLipi, Bangla, AdorshoLipi, Bensen, BenSenHandwriting, Kalpurush, Sagar, Siyamrupali; padding - top: 0px; padding - right: 4px; padding - bottom: 0px; color: #616161; font - weight: normal; border - radius: 2px; white - space: pre - wrap; background - color: #ffffff; min - height: 30px;"> = ২৫০ সে.মি :. চেীবাচ্চাটির ভিতরের আয়তন = <span id = "MathJax - Element - 3 - Frame" class = "MathJax" style = "margin: 0px; padding: 0px; display: inline; line - height: normal; word - spacing: normal; overflow - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; border: 0px; position: relative; color: #333333 !important;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML"><mstyle displaystyle = "true"><mrow><mo>(</mo><mo>&#x9E8;</mo><mo>&#x9EB;</mo><mo>&#x9E6;</mo><mo>&#xD7;</mo><msup><mi>a</mi><mo>&#x9E8;</mo></msup><mo>)</mo></mrow></mstyle></math>"><span id = "MathJax - Span - 22" class = "math" style = "margin: 0px; padding: 0px; color: #616161; transition: none 0s ease 0s; display: inline - block; position: static; border: 0px; vertical - align: 0px; line - height: normal; width: 7.826em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 6.53em; height: 0px; font - size: 21.6px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.947em, 1006.35em, 4.03em, - 999.998em); top: - 3.238em; left: 0em;"><span id = "MathJax - Span - 23" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 24" class = "mstyle" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 25" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 26" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 27" class = "mo" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0em; line - height: normal;"><span style = "font - family: MathJax_Size2; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal;">(</span></span><span id = "MathJax - Span - 28" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">২</span></span><span id = "MathJax - Span - 29" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৫</span></span><span id = "MathJax - Span - 30" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 31" class = "mo" style = "font - family: MathJax_Main; margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;">×</span><span id = "MathJax - Span - 32" class = "msup" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 0.928em; height: 0px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(3.382em, 1000.51em, 4.123em, - 999.998em); top: - 3.979em; left: 0em;"><span id = "MathJax - Span - 33" class = "mi" style = "font - family: MathJax_Math - italic; margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;">a</span></span><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 2.637em; left: 0.512em;"><span id = "MathJax - Span - 34" class = "mo" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 15.2712px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 12.6751px;">২</span></span></span></span></span><span id = "MathJax - Span - 35" class = "mo" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0em; line - height: normal;"><span style = "font - family: MathJax_Size2; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal;">)</span></span></span></span></span></span></span></span></span></span> ঘন সে.মি = ২৫০ ঘন সে.মি আবার চেীবাচ্চাটিতে পানি ধরে ২৮৯০০ লিটার সুতরাং চেীবাচ্চার ভিতরের আয়তন = (২৮৯০০×১০০০) ঘন সে.মি [১ লিটার = ১০০০ ঘন সে.মি] = ২৮৯০০০০০ ঘন সে.মি শর্তমতে, 2<span id = "MathJax - Element - 5 - Frame" class = "MathJax" style = "margin: 0px; padding: 0px; display: inline; line - height: normal; word - spacing: normal; overflow - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; border: 0px; position: relative; color: #333333 !important;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML"><mstyle displaystyle = "true"><mo>&#x9E8;</mo><mo>&#x9EB;</mo><mo>&#x9E6;</mo><msup><mi>a</mi><mo>&#x9E8;</mo></msup></mstyle></math>"><span id = "MathJax - Span - 53" class = "math" style = "margin: 0px; padding: 0px; color: #616161; transition: none 0s ease 0s; display: inline - block; position: static; border: 0px; vertical - align: 0px; line - height: normal; width: 4.817em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 3.984em; height: 0px; font - size: 21.6px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.252em, 1003.98em, 2.688em, - 999.998em); top: - 2.359em; left: 0em;"><span id = "MathJax - Span - 54" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 55" class = "mstyle" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 56" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><br /><span id = "MathJax - Span - 60" class = "msup" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 0.928em; height: 0px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(3.382em, 1000.51em, 4.123em, - 999.998em); top: - 3.979em; left: 0em;"><span id = "MathJax - Span - 61" class = "mi" style = "font - family: MathJax_Math - italic; margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;">a</span></span><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 2.637em; left: 0.512em;"><span id = "MathJax - Span - 62" class = "mo" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 15.2712px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 12.6751px;">২</span></span></span></span></span></span></span></span></span></span></span></span> = ২৮৯০০০০০ বা, <span id = "MathJax - Element - 6 - Frame" class = "MathJax" style = "margin: 0px; padding: 0px; display: inline; line - height: normal; word - spacing: normal; overflow - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; border: 0px; position: relative; color: #333333 !important;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML"><mstyle displaystyle = "true"><msup><mi>a</mi><mo>&#x9E8;</mo></msup><mo> = </mo><mfrac><mrow><mo>&#x9E8;</mo><mo>&#x9EE;</mo><mo>&#x9EF;</mo><mo>&#x9E6;</mo><mo>&#x9E6;</mo><mo>&#x9E6;</mo><mo>&#x9E6;</mo><mo>&#x9E6;</mo></mrow><mrow><mo>&#x9E8;</mo><mo>&#x9EB;</mo><mo>&#x9E6;</mo></mrow></mfrac></mstyle></math>"><span id = "MathJax - Span - 63" class = "math" style = "margin: 0px; padding: 0px; color: #616161; transition: none 0s ease 0s; display: inline - block; position: static; border: 0px; vertical - align: 0px; line - height: normal; width: 13.197em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 10.975em; height: 0px; font - size: 21.6px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(0.604em, 1010.98em, 3.336em, - 999.998em); top: - 2.22em; left: 0em;"><span id = "MathJax - Span - 64" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 65" class = "mstyle" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 66" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 67" class = "msup" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 0.928em; height: 0px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(3.382em, 1000.51em, 4.123em, - 999.998em); top: - 3.979em; left: 0em;"><span id = "MathJax - Span - 68" class = "mi" style = "font - family: MathJax_Math - italic; margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;">a</span></span><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 2.637em; left: 0.512em;"><span id = "MathJax - Span - 69" class = "mo" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 15.2712px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 12.6751px;">২</span></span></span></span></span><span id = "MathJax - Span - 70" class = "mo" style = "font - family: MathJax_Main; margin: 0px; padding: 0px 0.326em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"> = </span><span id = "MathJax - Span - 71" class = "mfrac" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px 0.141em; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 8.336em; height: 0px;"><span style = "margin: 0px 0px 0px - 4.072em; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.438em, 1007.92em, 2.688em, - 999.998em); top: - 3.053em; left: 90.0156px;"><span id = "MathJax - Span - 72" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 73" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">২</span></span><span id = "MathJax - Span - 74" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৮</span></span><span id = "MathJax - Span - 75" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৯</span></span><span id = "MathJax - Span - 76" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 77" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 78" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 79" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 80" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span></span></span><span style = "margin: 0px 0px 0px - 1.525em; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.438em, 1002.78em, 2.688em, - 999.998em); top: - 1.618em; left: 90.0156px;"><span id = "MathJax - Span - 81" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 82" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">২</span></span><span id = "MathJax - Span - 83" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৫</span></span><span id = "MathJax - Span - 84" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span></span></span></span></span></span></span></span></span></span></span></span> বা, a২ = ১১৫৬০০</h2> <h2 style = "font - size: 18px; margin: 0px; font - family: 'Helvetica Neue', Helvetica, Arial, sans - serif, serif, SolaimanLipi, Bangla, AdorshoLipi, Bensen, BenSenHandwriting, Kalpurush, Sagar, Siyamrupali; padding - top: 0px; padding - right: 4px; padding - bottom: 0px; color: #616161; font - weight: normal; border - radius: 2px; white - space: pre - wrap; background - color: #ffffff; min - height: 30px;">বা, a = <span id = "MathJax - Element - 8 - Frame" class = "MathJax" style = "margin: 0px; padding: 0px; display: inline; line - height: normal; word - spacing: normal; overflow - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; border: 0px; position: relative; color: #333333 !important;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML"><mstyle displaystyle = "true"><msqrt><mrow><mo>&#x9E7;</mo><mo>&#x9E7;</mo><mo>&#x9EB;</mo><mo>&#x9EC;</mo><mo>&#x9E6;</mo><mo>&#x9E6;</mo></mrow></msqrt></mstyle></math>"><span id = "MathJax - Span - 99" class = "math" style = "margin: 0px; padding: 0px; color: #616161; transition: none 0s ease 0s; display: inline - block; position: static; border: 0px; vertical - align: 0px; line - height: normal; width: 8.428em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 6.993em; height: 0px; font - size: 21.6px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(0.928em, 1006.95em, 2.965em, - 999.998em); top: - 2.22em; left: 0em;"><span id = "MathJax - Span - 100" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 101" class = "mstyle" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 102" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 103" class = "msqrt" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 6.993em; height: 0px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.438em, 1005.7em, 2.688em, - 999.998em); top: - 2.359em; left: 1.021em;"><span id = "MathJax - Span - 104" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 105" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 106" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">১</span></span><span id = "MathJax - Span - 107" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">১</span></span><span id = "MathJax - Span - 108" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৫</span></span><span id = "MathJax - Span - 109" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৬</span></span><span id = "MathJax - Span - 110" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 111" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span></span></span></span><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(3.567em, 1005.93em, 3.891em, - 999.998em); top: - 4.859em; left: 1.021em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 5.928em; height: 0px;"><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: - 0.09em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 5.234em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 0.419em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 0.975em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 1.53em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 2.039em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 2.595em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 3.15em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 3.66em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 4.215em;">−</span><span style = "font - family: MathJax_Main; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; top: - 3.979em; left: 4.771em;">−</span></span></span><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(2.688em, 1001.02em, 4.771em, - 999.998em); top: - 4.025em; left: 0em;"><span style = "font - family: MathJax_Size2; margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal;">√</span></span></span></span></span></span></span></span></span></span></span> :. a = ৩৪০ :. বর্গাকার চেীবাচ্চার ভিতরের প্রতিটি তলের বাহুর দৈর্ঘ্য = ৩৪০ সে.মি = <span id = "MathJax - Element - 9 - Frame" class = "MathJax" style = "margin: 0px; padding: 0px; display: inline; line - height: normal; word - spacing: normal; overflow - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; border: 0px; position: relative; color: #333333 !important;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML"><mstyle displaystyle = "true"><mfrac><mrow><mo>&#x9E9;</mo><mo>&#x9EA;</mo><mo>&#x9E6;</mo></mrow><mrow><mo>&#x9E7;</mo><mo>&#x9E6;</mo><mo>&#x9E6;</mo></mrow></mfrac></mstyle></math>"><span id = "MathJax - Span - 112" class = "math" style = "margin: 0px; padding: 0px; color: #616161; transition: none 0s ease 0s; display: inline - block; position: static; border: 0px; vertical - align: 0px; line - height: normal; width: 4.169em;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 3.475em; height: 0px; font - size: 21.6px;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(0.604em, 1003.48em, 3.336em, - 999.998em); top: - 2.22em; left: 0em;"><span id = "MathJax - Span - 113" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 114" class = "mstyle" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 115" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 116" class = "mfrac" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px 0.141em; padding: 0px; transition: none 0s ease 0s; display: inline - block; position: relative; border: 0px; vertical - align: 0px; line - height: normal; width: 3.197em; height: 0px;"><span style = "margin: 0px 0px 0px - 1.525em; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.438em, 1002.78em, 2.688em, - 999.998em); top: - 3.053em; left: 34.5156px;"><span id = "MathJax - Span - 117" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 118" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৩</span></span><span id = "MathJax - Span - 119" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">৪</span></span><span id = "MathJax - Span - 120" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span></span></span><span style = "margin: 0px 0px 0px - 1.479em; padding: 0px; transition: none 0s ease 0s; position: absolute; border: 0px; vertical - align: 0px; line - height: normal; clip: rect(1.438em, 1002.69em, 2.688em, - 999.998em); top: - 1.618em; left: 34.5156px;"><span id = "MathJax - Span - 121" class = "mrow" style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span id = "MathJax - Span - 122" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">১</span></span><span id = "MathJax - Span - 123" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span><span id = "MathJax - Span - 124" class = "mo" style = "margin: 0px; padding: 0px 0.28em; transition: none 0s ease 0s; display: inline; position: static; border: 0px; vertical - align: 0px; line - height: normal;"><span style = "margin: 0px; padding: 0px; transition: none 0s ease 0s; position: static; border: 0px; vertical - align: 0px; line - height: normal; font - size: 17.928px;">০</span></span></span></span></span></span></span></span></span></span></span></span></span> মিটার = ৩.৪ মিটার :. চেীবাচ্চাটির তলার ক্ষেত্রফল = (৩.৪) বর্গমিটার = ১১.৫৬ বর্গমিটার এবং চেীবাচ্চার পাশের প্রতিটি তলের ক্ষেত্রফল = (৩.৪×২.৫) বর্গমিটার</h2> <h2 style = "font - size: 18px; margin: 0px; font - family: 'Helvetica Neue', Helvetica, Arial, sans - serif, serif, SolaimanLipi, Bangla, AdorshoLipi, Bensen, BenSenHandwriting, Kalpurush, Sagar, Siyamrupali; padding: 0px 4px; color: #616161; font - weight: normal; border - radius: 2px; white - space: pre - wrap; background - color: #ffffff; min - height: 30px;"> = ৮.৫ বর্গমিটার সুতরাং চেীবাচ্চার ভিতরের সমগ্র তলের ক্ষেত্রফল = (১১.৫৬ + ৪×৮.৫) বর্গমিটার</h2> <h2 style = "font - size: 18px; margin: 0px; font - family: 'Helvetica Neue', Helvetica, Arial, sans - serif, serif, SolaimanLipi, Bangla, AdorshoLipi, Bensen, BenSenHandwriting, Kalpurush, Sagar, Siyamrupali; padding: 0px 4px; color: #616161; font - weight: normal; border - radius: 2px; white - space: pre - wrap; background - color: #ffffff; min - height: 30px;"> = ৪৫.৫৬ বর্গমিটার প্রতি বর্গমিটার সীমার পাত লাগাতে খরচ হয় ১২.৫০ টাকা :. ৪৫.৫৬ বর্গমিটার সীমার পাত লাগাতে খরচ হয় (১২.৫০×৪৫.৫৬) টাকা</h2> <h2 style = "font - size: 18px; margin: 0px; font - family: 'Helvetica Neue', Helvetica, Arial, sans - serif, serif, SolaimanLipi, Bangla, AdorshoLipi, Bensen, BenSenHandwriting, Kalpurush, Sagar, Siyamrupali; padding: 0px 4px; color: #616161; font - weight: normal; border - radius: 2px; white - space: pre - wrap; background - color: #ffffff; min - height: 30px;"> = ৫৬৯.৫০ টাকা। :. চেীবাচ্চাটির ভিতরের সীসার পাত লাগাতে খরচ হয় ৫৬৯.৫০ টাকা। উত্তর: ৫৬৯.৫০ টাকা।</h2>
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