alleryएक खोखले पाइप की बाहरी त्रिज्या 8 cm, आंतरिक त्रिज्या 7 cm और लंबाई 14 cm है। इसमें प्रयुक्त सामग्री का आयतन ज्ञात कीजिए (π = 22/7)।
A1320 cm³
B330 cm³
C660 cm³
D2156 cm³
Answer & Solution
Correct answer: C. 660 cm³
आयतन = π (64 - 49) × 14 = (22/7)(15)(14) = 660 घन सेमी (cm³)।
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