3 cm, 4.5cm, 5.5cm বাহু বিশিষ্ট কোনো ত্রিভুজের ক্ষেত্রফল কত?

Created: 8 years ago | Updated: 1 month ago

Updated: 1 month ago

ক

87.5
খ

7.50
গ

6.75
ঘ

7.55

3.3k

ব্যাখ্যাঃ

ত্রিভুজের ক্ষেত্রফল =

s = 1/2 (3 + 4.5 + 5.5) = 6.5

ত্রিভুজের ক্ষেত্রফল = sqrt{6.5(6.5 - 3)(6.5 - 4.5)(6.5 - 5.5)}

= sqrt {6.5X3.5X2X1}

= sqrt(6.5X7)

Closest answer is 6.75

Azizar Rahman Aziz

8 years ago

MCQ: 36 CQ: 15

Practice

ত্রিভুজের তিন বাহু দেওয়া থাকলে ক্ষেত্রফল

ত্রিভুজের তিন বাহু দেওয়া আছে :

মনে করি, △ABC এর BC = a, CA = b এবং AB = c । এর পরিসীমা 2s = a + b + c l AD ⊥ BC আঁকি।

ধরি, BD = x তাহলে, CD = a - x

△ABD এবং △ACD সমকোণী।

আবার,

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শিক্ষকদের জন্য বিশেষভাবে তৈরি

১ ক্লিকে প্রশ্ন, শীট, সাজেশন ও
অনলাইন পরীক্ষা তৈরির সফটওয়্যার!

শুধু প্রশ্ন সিলেক্ট করুন — প্রশ্নপত্র অটোমেটিক তৈরি!

প্রশ্ন এডিট করা যাবে

জলছাপ দেয়া যাবে

ঠিকানা যুক্ত করা যাবে

Logo, Motto যুক্ত হবে

অটো প্রতিষ্ঠানের নাম

অটো সময়, পূর্ণমান

প্রশ্ন এডিট করা যাবে

জলছাপ দেয়া যাবে

ঠিকানা যুক্ত করা যাবে

Logo, Motto যুক্ত হবে

অটো প্রতিষ্ঠানের নাম

অটো সময়, পূর্ণমান

অটো নির্দেশনা (এডিটযোগ্য)

অটো বিষয় ও অধ্যায়

OMR সংযুক্ত করা যাবে

ফন্ট, কলাম, ডিভাইডার

প্রশ্ন/অপশন স্টাইল পরিবর্তন

সেট কোড, বিষয় কোড

অটো নির্দেশনা (এডিটযোগ্য)

অটো বিষয় ও অধ্যায়

OMR সংযুক্ত করা যাবে

ফন্ট, কলাম, ডিভাইডার

প্রশ্ন/অপশন স্টাইল পরিবর্তন

সেট কোড, বিষয় কোড

এখনই শুরু করুন ডেমো দেখুন

৫০,০০০+

শিক্ষক

৩০ লক্ষ+

প্রশ্নপত্র

Notification

3 cm, 4.5cm, 5.5cm বাহু বিশিষ্ট কোনো ত্রিভুজের ক্ষেত্রফল কত?

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