Question
The radius of a sphere is 12cm. The surface of the
sphere is what percent of its volumeSolution
Given r = 12cm Surface area of sphere = 4Ďr22 Volume of sphere =4/3 Ďr3 According to question  = (4Ďr2)/(4/3 Ďr3 )  Ă100  = 3/rĂ100   = 3/12Ă100  = 1/4Ă100  =25%
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