Yesterday i was doing the question from class 9th ncert book of math of Surface areas and Volumes chapter of exercise 13.4 What is the easiest way for solving it because i was not able to do this question please help me for solving this question Find the surface area of a sphere of radius: (iii) 14cm
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Radius of sphere, r = 14cm
SA = 4πr2
= 4×(22/7)×(14)2
= 2464
Surface area of sphere is 2464 cm2