What is the ratio of volumes of cylinder and sphere ?

A sphere is inscribed in a cylinder . What is the ratio of volume sphere and cylinder ?

What is the ratio of total surface areas of cylinder and sphere ?

Ratio of volumes of a cylinder and a hemisphere of equal radius and heights is ………..

The ratio of volumes of cylinder and cone having same radii and heights is

Ratio of volumes of a cone, a cylinder and a hemisphere of same base, radius and equal heights is ………..

Volume of hollow cylinder is ….

The ratio of volume of a cone and cylinder of equal diameter and height is

A sphere, a cylinder and a cone have the same radius and same height. Find the ratio of their volumes. [Hint : Diameter of the sphere is equal to the heights of the cylinder and the cone.]

Volume of cylinder is ……… cu. units.