Question
The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12 cm each . The radius of the sphere is
Answer: Option C
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`4 pi R^2 = 2 pi xx 6 xx 12`
`rArr R^2 = ((6 xx 12)/(2))`
`rArr R^2 = 36`
`rArr R = 6` cm.
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