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Question
একটি রেখাংশের উপর অঙ্কিত বর্গক্ষেত্রের ঐ রেখাংশের এক- তৃতীয়াংশের উপর অঙ্কিত বর্গক্ষেত্রের কতগুণ?
1/9 গুন
1/3 গুন
9 গুন
3 গুন
ANSWER : 3
Descrption
<pre> মনে করি, রেখাংশের দৈর্ঘ্য x একক ∴ ক্ষেত্রফল <math xmlns = "http://www.w3.org/1998/Math/MathML"><msup><mi>x</mi><mn>2</mn></msup><mo> </mo><mo> </mo><mo> </mo><mfrac><mi>x</mi><mn>3</mn></mfrac><mspace linebreak = "newline"/><mfrac><msup><mi>x</mi><mn>2</mn></msup><mn>9</mn></mfrac><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mfrac><msup><mi>x</mi><mn>2</mn></msup><mstyle displaystyle = "true"><mfrac><msup><mi>x</mi><mn>2</mn></msup><mn>9</mn></mfrac></mstyle></mfrac><mo> = </mo><msup><mi>x</mi><mn>2</mn></msup><mo>×</mo><mfrac><mn>9</mn><msup><mi>x</mi><mn>2</mn></msup></mfrac><mspace linebreak = "newline"/><mo> = </mo><mn>9</mn></math> </pre>
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