Three spheres are made by melting a solid metallic sphere of radius 6 cm. If the radii of the two spheres are 3 cm and 4 cm respectively, then the radius of the third spheres is ………………… cm.

The volume and the surface area of a sphere are numerically the same. Then the volume of the smallest cylinder in which the sphere is exactly kept is

Lateral Surface Area of four walls of a room is ……………….. sq.units

The radius of the base and height of a right circular cone are 9 cm and 15 cm respectively. Then volume of the cone is …………………. $c{m}^{3}cm^3$ .

The heights of two cylinders are equal. The radii are R and r. Then the ratio of their volumes is

The volume of a sphere of radius ‘r’ is obtained by multiplying its surface area by

The ratio between the volumes of a sphere and a cylinder, if in the cylinder, height is equal to the radius of base and radii of both sphere and cylinder are equal is …………

A solid sphere of radius ‘r’ is melted and cast into the shape of a solid cone of height ‘r’. The radius of the base of the cone is

To find out quantity of water inside a bottle, we measure

In the adjacent figure, l is called