A friction clutch is in the form of a frustum of a cone, the diameter of the ends being 32 cm and 20 cm and length 8 cm. Find its bearing surface and volume.

The diameter of the base of a cone is 6 cm and height is 4 cm. Find its curved surface area.

A solid is in the shape of a frustum of a cone. The diameters of the two circular ends are 60 cm and 36 cm and the height is 9 cm. Find the area of its whole surface and the volume.

A frustum of a right circular cone has a diameter of base 20 cm, of top 12 cm, and height 3 cm. Find the area of its whole surface and volume.

Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area.

The radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm and its slant height is 10 cm. Find its total surface area.

A bucket is in the form of a frustum of a cone and holds 15.25 litres of water. The diameters of the top and bottom are 25cm and 20cm respectively. Find its height and area of tin used in its construction.

A container is in the form of a frustum of a cone of height 30 cm with radii of its lower and upper ends as 10 cm and 20 cm respectively. Find the capacity and surface area of the container. Also, find the cost of milk which can completely fill the container at the rate of Rs 25 per litre.[Take pi= 3.14 ]

The diameter of a cone is 14cm and its slant height is 9cm. Find the area of its curved surface.

The diameter of a cone is 14cm and its slant height is 9cm. Find the area of its curved surface.

A bucket open at the top, and made up of a metal sheet is in the form of a frustum of a cone. The depth of the bucket is 24 cm and the diameters of its upper and lower circular ends are 30 cm and 10 cm respectively. Find the cost of metal sheet used in it at the rate of Rs 10 per 100 cm^2 .