alleryπ = 22/7 का प्रयोग करते हुए, 21 cm त्रिज्या वाले एक ठोस अर्धगोले का आयतन ज्ञात कीजिए।
A9702 cm³
B19404 cm³
C38808 cm³
D4851 cm³
Answer & Solution
Correct answer: B. 19404 cm³
अर्धगोले का आयतन = (2/3) π r³ = (2/3)(22/7)(9261) = 19404 घन सेमी (cm³)।
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