A school decide to give a trophy of the best
student in the class, which is the form of cylinder mounted on a solid hemisphere with the same radius and is made from some metal.
This trophy is mounted on a wooden cuboid as shown in the figure,
Suppose the diameter of the hemisphere is 24 cm and total height of the trophy is
28 cm
l (a) Find the curve surface area of cylinder. (1) 1207.90 cm (ii) 1206.86 cm
(iii) 1230.95 cm (iv) 1250.50 cm
(b) Find the volume of cylinder:
i) 7250.60 cm (ii) 7241.14 cm
(fii) 7282.50 cm (iv) None of these
(c) Find the curved surface area of
trophy.
(i) 2113 cm (1) 2112 cm
(iii) 2115 cm
(iv) 2118 cm
(d) Find the volume of the trophy
(1) 10820 cm (ii) 10825 cm
(iii) 10816.71 cm (iv) None of these (e) Find the weight of the metal used in making the trophy, if the weight of 1 cm of metal is 1.5 gm.
(1) 16292.57 gm (ii) 16320 gm (ii) 16312.5 gm (iv) None of these
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Answer:
10820 cm............................
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