Question

3. A toy is in the form of a hemisphere surmounted by a right circular cone of the same
base and radius as that of the hemisphere. If the radius of the base of the cone is 25 cm
2
and its valume is
of the volume of the hemisphere. Find the height of the cone and
3
22
the surface area of the toy use n =
7​

Answer 1

Answer:

A toy is in the form of a hemisphere surmounted by a right circular cone of the same base radius as that of the hemisphere. If the radius of the base of the cone is 21cm and its volume is 32 of the volume of the hemisphere, calculate the height of the cone and the surface area of the toy. (Use π=22/7)