A cylinder and a cone have equal radii of their bases and equal heights. If their curved surface areas are in the ratio 8:5, show that the radius of each is to the height of each as 3:4.

A cylinder and a cone have equal radii of their bases and equal heights. Show that their volumes are in the ratio 3:1.

A sphere, a cylinder and a cone are of the same radius and same height. Find the ratio of their curved surface.

A sphere, a cylinder and a cone are of the same radius and same height. Find the ratio of their curved surface.

For minimum curved surface area and given volume, the ration of the height and radius of base of a cone is :

Find the curved surface area of the cylinder whose height is 20 cm and the radius of base is 7 cm.

A right circular cone and a right circular cylinder have equal base and equal height. If the radius of the base and the height are in the ratio 5 : 12, then the ratio of the total surface area of the cylinder to that of the cone is (a) 3 : 1 (b) 13 : 9 (c) 17 : 9 (d) 34 : 9

A cone and a hemisphere have equal bases and equal volumes. Find the ratio of their heights.

A cone and a hemisphere have equal bases and equal volumes. The ratio of their heights is

The curved surface area of a cone is 12320 cm^(2). If the radius of its base is 56 cm, find its height.

Find the curved surface area of a cone, if its slant height is 60cm and the radius of its base is 21cm.