Mensurationmedium · Past Paper
Find the cost of polishing a solid hemisphere of radius 7 cm at the rate of Rs. 2 per sq. cm.
ARs. 616
BRs. 924
CRs. 308
DRs. 462
✓ Correct Answer: B — Rs. 924
TSA = 3πr² = 462 cm². Cost = 462 * 2 = Rs. 924.
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