A sphere is inscribed in a right circular cylinder . Prove that the total surface area of the sphere is equal to the curved surface area of the cylinder .

Write True or False If the length of the radius of a right circular cylinder is doubled and height is halved , then lateral surface area is equal to the lateral surface area of the original cylinder.

The radii of bases of a solid right circular cylinder and of two hemispheres are equal . If the two hemisphere be joined with two end - planes of the cylinder , then the total surface area of the new solid object = ( the curved surface area of the one of the hemispheres ) + (curved surface area of the .......... ) + ( the curved surface area of the other hemisphere).

The height of a right circular cylinder is 1 m 4 dcm and the diameter of the base is 5 metres. Then the area of the curved surface of the cylinder is

The total surface area of a sphere is 8Pi square unit. The volume of the sphere is____

A right circular cylinder just enclose a sphere of radius r Find ( i) surface area of the sphere (ii) curved surface area of the cylinder (iii) ratio of the areas obtained in (i) and (ii)

If the radius of a solid sphere is r unit, the total surface area of the quarter sphere is

The volume of a sphere and a right circular cone are same. The height of the cone is twice the length of the radius of the cone. Find the ratio of the curved surface area of the cone and sphere.

If the whole surface area of a sphere be Pid^2 sq.unit, then the volume of the sphere be

If the wole surface area of a sphere be 5544 sq-cm, then the volume of the sphere will be

If the whole surface area of a sphere be pir^(2) sq-uints, then the volume of the sphere will be