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Question
Find the surface area of a sphere of radius 14 cm.
`["Assume "pi=22/7]`
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Solution
Radius (r) of sphere = 14 cm
Surface area of sphere = 4πr2
= `[4xx22/7xx(14)^2]cm^2`
= (4 × 44 × 14) cm2
= 2464 cm2
Therefore, the surface area of a sphere having radius 14 cm is 2464 cm2.
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