The slant height of a cone is 13 cm and its total surface area is `90pi cm^(2)`. Find its radius of base.

The perpendicular height of a cone is 12 cm and its slant height is 13 cm . Find the radius of the base of the cone .

The slant height of a cone is 10.5 cm and diametre of base is 14 cm. Find its curved surface area.

The slant height of a cone is 10.5 cm and diametre of base is 14 cm. Find its curved surface area.

The slant height of a right circular cone is 7 cm and the total surface area of its is 147.84 sq.cm. Find the base radius of the cone.

The curved surface area of a cone is 308 cm^(2) and its slant height is 14 cm. Find the radius of the base and total surface area of the cone.

The ratio of the slant height and radius of the cone is 7 : 4. If itscurved surface area is 550 cm^(2) , then find its radius.

The ratio of the slant height and radius of the cone is 7 : 4. If itscurved surface area is 550 cm^(2) , then find its radius.

The radius of base and slant height of a cone are in the ratio 4 : 7. If its curved surface area is 792 cm^(2) , then the radius (in cm) of its base is [Use pi = 22//7 ]