what is the tricky way for solving the question of class 9th ncert math of Surface areas and Volumes chapter of ncert of exercise 13.4 of math give me the best and simple way for solving this question in easy and simple way Find the surface area of a sphere of diameter: (i) 14cm (Assume π = 22/7)
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Find the surface area of a sphere of diameter: (i) 14cm (Assume π = 22/7) Q.2(1)
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Radius of sphere, r = diameter/2 = 14/2 cm = 7 cm
Formula for Surface area of sphere = 4πr2
= 4×(22/7)×72 = 616
Surface area of a sphere is 616 cm2