alleryહેરોનના સૂત્ર મુજબ, 13, 14 અને 15 cm બાજુઓ ધરાવતા ત્રિકોણનું ક્ષેત્રફળ કેટલું થાય?
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
અર્ધપરિમિતિ 21 છે, તેથી ક્ષેત્રફળ એ 21 x 8 x 7 x 6 નું વર્ગમૂળ = 84 ચોરસ સેન્ટિમીટર થાય.
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