1.

A sphere of 5 cm radius is cut by two parallel planes which are 7 cm apart but on the opposite sides of the centre of the sphere. The radius of one of the ends of the zone is 3 cm. What is the volume (in cu. cm.) of the zone?

Answer»

`(21)/5 pi`
`(17)/4 pi`
`(14)/3 pi`
`6pi`

Answer :C


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