units × = 48510 Therefore, volume of the frustum is 48510 cm l L h R D E H Fig. . Thinking Corner Is it possible to obtain the volume of the full cone when the volume of the frustum is known? Fig.
. cm cm cm The adjacent figure represents an oblique frustum of a cylinder. Suppose this solid is cut by a plane through C , not parallel to the base AB , then CSA h h sq. units where h and h denote the greatest and least height of the frustum.
Then its volume = p r h h cu. units Exercise . . A m deep well with inner diameter m is dug and the earth taken out is evenly spread all around the well to form an embankment of width m.
Find the height of the embankment. . A cylindrical glass with diameter cm has water to a height of cm. A small cylindrical metal of radius cm and height cm is immersed completely.
Calculate the raise of the water in the glass? . If the circumference of a conical wooden piece is cm then find its volume when its height is cm. .
A conical container is fully filled with petrol. The radius is m and the height is m. If the container can release the petrol through its bottom at the rate of cu. meter per minute, in how many minutes the container will be emptied.
Round off your answer to the nearest minute. . A right angled triangle whose sides are cm, cm and cm is revolved about the sides containing the right angle in two ways. Find the difference in volumes of the two solids so formed.
. The volumes of two cones of same base radius are cm and