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If the curved surface area of a cone is twice that of another cone and slant height of the second cone is twice that of the first. Find the ratio of the area of their bases

A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of the cone is h. If the total volume of the solid is three times the volume of the cone

The slant height of a cone is 12 cm and radius of the base is 4cm, find the curved surface of the cone

The area of the base of a right cone is 154 m2 and its volume is 308 m2. The height of the cone is

The area of a base of a cone is 30 cm2. If the height of the cone is 6cm, find its volume

a solid cylinder has total surface area of 462 cm2. If total surface area of the cylinder is thrice of its curved surface are then the volume of the cylinder is

A solid cylinder of lead 8m high and 2m radius is melted and recast into a cone of radius 1.5m, What is the height of the cone