A right circular cylinder of radius 7cm, Just encloses a sphere. Find the ratio of volume of cylinder to that of the sphere....

r = 7cm
h = 2r = 2*7cm
volume of cylinder = ​πr2h = 686π
volume of sphere = 4/3 ​πr3 = 343* 4/3 π

volume (cylinder) / volume (sphere) =  3:2
 

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