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Ex 13.4, 1 (i) - Chapter 13 Class 9 Surface Areas and Volumes (Term 2)

Last updated at March 22, 2023 by

Ex 13.4, 1 - Find surface area of a sphere of radius - Ex 13.4

 

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Ex 13.4, 1 Assume = 22/7, unless stated otherwise. Find the surface area of a sphere of radius: 10.5 cm Radius of sphere = r = 10.5 cm Surface area of sphere = 4 r2 = (4 22/7 10.5 10.5)cm2 = 1386 cm2

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