CBSE Class 10 Answered
14. From a solid cylinder of height 12 cm
and base diameter 10 cm, a conical cavity with
the same height and diameter is carved out. Find
the volume of the remaining solid.
15. A building is in the form of a cylinder
surmounted by a hemispherical dome as shown in
the figure. The base diameter of the dome is equal
to
2
3 of the total height of the building. Find the
height of the building, if it contains 67 1
27
m3 of
air. [2011 (T-II)]
16. A heap of rice is in the form of a cone of
diameter 9 mand height 3.5 m. Find the volume of
the rice. Howmuch canvas cloth is required to just
cover the heap?
17. 500 persons are taking a dip into a cuboidal
pond which is 80 m long and 50 m broad.What is
the rise of water level in the pond, if the average
displacement of the water by a person is 0.04 m3.
18. A rocket is in the form of a right circular
cylinder closed at the lower end and surmounted
by a cone with the same radius as that of the
cylinder. The diameter and height of the cylinder
are 6 cmand 12 cmrespectively. If the slant height
of the conical portion is 5 cm, find the total surface
area and volume of the rocket. (Take ? = 3.14)
Asked by swetha | 01 Jan, 2014, 08:34: PM
Expert Answer
Please ask one question at a time. The answer to your first question is as follows:
Answered by | 01 Jan, 2014, 09:50: PM
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