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Find the diameter of a sphere whose surface area is 100π cm21). 5 cm2). 7 cm3). 12 cm4). 8 cm |
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Answer» Let, the radius of the sphere = r cm. ∴ Surface AREA of the sphere = 4πr2 cm2 According to Problem, ⇒ 4πr2 = 100π Or, r2 = 25 ⇒ r = 5 |
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