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CBSE Class 10 Answered

surface area and volume
Asked by | 13 Jan, 2009, 08:00: AM
answered-by-expert Expert Answer

let the radius of base be r and height be h. let A be area of base = pi*r2

volume of cylinder will be = pi*r2h = Ah

volume of hemisphere = 2*pi*r3/3 = 2Ar/3 = 2Ah/3  (here r=h)

volume of cone= pi*r2h/3 = Ah/3

so ratio of volumes of cylinder, cone and hemisphere is = 1: 2/3 : 1/3 = 3:2:1

Answered by | 13 Jan, 2009, 11:50: AM

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