allerypi = 22/7 ਦੀ ਵਰਤੋਂ ਕਰਦੇ ਹੋਏ, 21 cm ਅਰਧ ਵਿਆਸ ਵਾਲੇ ਇੱਕ ਠੋਸ ਅਰਧਗੋਲੇ ਦਾ ਆਇਤਨ ਪਤਾ ਕਰੋ।
A9702 cm³
B19404 cm³
C38808 cm³
D4851 cm³
Answer & Solution
Correct answer: B. 19404 cm³
ਅਰਧਗੋਲਾਕਾਰ ਆਇਤਨ (2/3) pi r ਘਣ = (2/3)(22/7)(9261) = 19404 ਘਣ ਸੈਂਟੀਮੀਟਰ ਹੈ।
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