A circle having 21 cm radius is cut into 3 equal parts to make 3 equal circular cones. Then what will be the radius of such cone ?

A sphere of radius 8 cm is melted and recast into a right circular cone of height 32 cm. Find the radius of the base of the cone

A hemisphere of lead of radius 6 cm is cast into a right circular cone of height 75 cm. Find the radius of the base of the cone.

A hemisphere of lead of radius 9 cm is cast into a right circular cone of height 72 cm. Find the radius of the base of the cone.

The radius of base and height of a right circular cone are equal . If the cone be melted to make a right circular cylinder of same radius , then what will be the ratio of the height of cylinder and the slant height of the cone ?

The total surface area of a solid hemisphere is 1848 sq. cm. A solid right circular cone is made by melting this hemisphere. If the radius of base of the cone is equal to the radius of the hemisphere , then what will be the height of the cone ?

A copper sphere of radius 3 cm is melted and recast into a right circular cone of height 3 cm. Find the radius of the base of the cone.

A copper sphere of radius 3 cm is melted and recast into a right circular cone of height 3 cm. Find the radius of the base of the cone.

The ratio of the radius of base and height of a right circular cone is 4:3 , if the area of the base of the cone be 154 sq-cm, then what will be the curved surface area of the cone ?

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 with radius of its base as 1.2 cm. find its height.

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