alleryਹੇਰੋਨ ਦੇ ਫਾਰਮੂਲੇ ਅਨੁਸਾਰ, ਇੱਕ ਤਿਕੋਣ ਦਾ ਖੇਤਰਫਲ ਕੀ ਹੈ ਜਿਸਦੀਆਂ ਭੁਜਾਵਾਂ 13, 14 ਅਤੇ 15 ਸੈਂਟੀਮੀਟਰ ਹਨ?
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
ਅਰਧ-ਘੇਰਾ 21 ਹੈ, ਇਸ ਲਈ ਖੇਤਰਫਲ 21 x 8 x 7 x 6 = 84 ਵਰਗ ਸੈਂਟੀਮੀਟਰ ਦਾ ਵਰਗਮੂਲ ਹੈ।
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