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Ex 13.4, 2 - Find surface area of a sphere of diameter - Area Of Sphere

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Ex 13.4, 2 Assume = 22/7, unless stated otherwise. Find the surface area of a sphere of diameter: 14 cm Radius of sphere = r = /2= (14/2) = 7 cm Surface area of sphere = 4 r2 = (4 22/7 7 7)cm2 = (4 22 1 7)cm2 = 616 cm2

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