1.

A cylinder, a cone and a hemisphere stand on the same base and have same height. The ratio of their volumes is1). 2 : 1 : 32). 1 : 2 : 33). 3 : 1 : 24). 1 : 3 : 2

Answer»

Since they have the same base (i.e. same radius of the base) and they have same height.

Thus the ratio of their volumes in the given ORDER = πr2H : πr2h/3 : 2/3 πr3

The radius R of the hemisphere is equal to h, hence = πr3 : πr3/3 : 2/3 πr3

= 1 : 1/3 : 2/3

= 3 : 1 : 2


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