Find the ratio of surface area and volume of the sphere of unit radius. -Maths 9th

Find the ratio of surface area and volume of the sphere of unit radius. -Maths 9th
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Answer :

Required ratio = 4πr2 / 4/3.πr3 =  3 x 4 x π x (1)2 / 4 x π x (1)3  = 3/1    (Since, r = 1) i.e., 3 : 1
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