The curved surface area of a cone is and its diameter is 70 cm. Find its slant height.

A cone of slant height 25 cm has a curved surface area Find the height and volume of the cone.

Find the volume of a cone having radius of the base 35 cm and slant height 37 cm.

How many metres of cloth, 2.5 m wide, will be required to make a conical tent whose base radius is 7 m and height 24 metres?

A right circular cone is 3.6 cm high and the radius of its base is 1.6 cm. It is melted and recast into a right circular cone having base radius 1.2 cm. Find its height.