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Ex 13.4, 1 - Chapter 13 Class 9 Surface Areas and Volumes - Part 3

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Ex 13.4, 1 Assume = 22/7, unless stated otherwise. Find the surface area of a sphere of radius: (iii) 14cm Radius of sphere = r = 14 cm Surface area of sphere = 4 r2 = (4 22/7 14 14)cm2 = (4 22 2 14)cm2 = 2464 cm2

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