Write the number of surfaces of a right circular cylinder.

A rectangular sheet of paper 30cmx×18cm can be transformed into the curved surface of a right circular cylinder in two ways namely, either by rolling the paper along its length or by rolling it along its breadth. Find the ratio of the volumes of the two cylinders, thus formed.

Prove that the surface area of the sphere is assume as that of the lateral surface of a right circular cylinder, which just encloses the sphere.

Find the curved surface area of a right circular cylinder at height 21 cm and base radius 5 cm.

Find the lateral surface area of a right circular cylinder, if its base has radius 3 cm and its height is 5 cm.

Show that the curved surface of a right circualr cylinder inscribed in a right circular cone is maximum when the radius of its base is half that of the cone.

Two steel sheets each of length a_1 and breadth a_2 are used to prepare the surfaces of two right circular cylinders-one having volume v_1 and height a_2 and other having volume v_2 and height a_1 then

The ratio between the curved surface area and the total surface area of a right circular cylinder is 1:3, find the ratio between the length and radius of the cylinder.

The curved surface area of a right circular cylinder of height 14 cm is 88 cm^2 . Find the diamter of the base of the cylinder.

The curved surface area of a right circular cylinder of height 21 cm is 132 cm^2. Find the diameter of the base of the cylinder.

The ratio between curved surface area and total surface area of right circular cylinder is 1:2 find the ratio between the height and the radius of the cylinder.