If the radius of the hemisphere is 21 cm, then find its volume.

A medicine capsule is in the shape of a cylinder with two hemispheres stock to each of its ends. If the length of cylinder part is 14mm and the diameter of hemisphere is 6 mm. then find the volume of medicine capsule.

A cylindrical tub of radius 5 cm and length 9.8 cm is full of water. A solid in the form of right circular cone mounted on a hemisphere is immersed into the tub. The radius of the hemisphere is 3.5 cm and height of cone outside the hemisphere is 5 cm. Find the volume of water left in the tub. " "("Take "pi=22/7)

A toy is made in the form of hemisphere surmounted by a right cone whose circular base is joined with the plane surface of the hemisphere. The radius of the base of the cone is 7 cm. and its volume is 3/2 of the hemisphere. Calculate the height of the cone and the surface area of the toy correct to 2 places of decimal. ("Take "pi=3""1/7)

If the volume of a hemisphere is 396/7 cm^3 , find its radius.

If radius is 2 cm then find the volume of a Ball.

The radius of sphere is 3.5 cm Find its surface area and volume .