Question
The volume of a sphere is 4851 cu.cm. Its curved surface area is :
Answer: Option A
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`4/3 xx 22/7 xx R^3 = 4851`
`rArr R^3 = (4851 xx 3/4 xx 7/22) = (21/2)^3`
`rArr R = 21/2`
`:.` Curved surface area =` (4 xx 22/7 xx 21/2 xx 21/2) cm^2 = 1386 cm^2`
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