A solid toy is in the form of a hemisphe...

A solid toy is in the form of a hemisphere surmounted by a right circular cone of same radius. The height of the cone is 10 Cm and the radius of the base is 7 cm. Determine the volume of the toy. Also find the area of the coloured sheet required to cover the toy. (Use `pi = 22//7` and `sqrt149 = 12.2`)

`R/3`

`R/2`

`R/6`

`R/4`

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