Question
A conical tent is 10 m high and the radius of its base is 24 m. Find:
(i) slant height of the tent.
(ii) cost of the canvas required to make the tent, if the cost of 1 m2 canvas is र 70.
Solution
(i) h = 10 m r = 24 m
= 26 m
Hence, the slant height of the tent is 26 m.
(ii) Curved surface area of the tent = 
rl
Cost of the canvas required to make the tent, if the cost of 1 m2 canvas is र 70.
= र 137280.
Hence, the cost of the canvas is र 137280.
