alleryHeron-ৰ সূত্ৰ অনুসৰি, 13, 14 আৰু 15 cm বাহুযুক্ত এটা ত্ৰিভুজৰ কালি কিমান?
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
অৰ্ধ-পৰিসীমা হ'ল 21, গতিকে কালি হ'ল 21 x 8 x 7 x 6-ৰ বৰ্গমূল = 84 square centimetres।
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