A cubical block of side 10cm is surmounted by a hemisphere. what is the largest diameter that the hemisphere can have? find the cost of painting the total surface area of the solid so formed, at the rate of rs 5 per 100 sq.cm
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The largest diameter that fhe hemisphere can have is 10 cm.
Total surface area of solid = CSA of hemisphere + CSA of cube
Total surface area = 157 + 400 = 557
Total cost = 5.57 × 5 = rs 27.85.
Hope it will help you
Total surface area of solid = CSA of hemisphere + CSA of cube
Total surface area = 157 + 400 = 557
Total cost = 5.57 × 5 = rs 27.85.
Hope it will help you
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