Question

A tent is in the shape of a right circular cylinder up to a height of 3 m and conical above it. The total height of the tent is 13.5 m and radius of its base is 14 m. Find the cost of cloth required to make the tent at the rate of ` 80 per square metre. (Take π = 22/7).

Answer 1

Here, Height of cylindrical part, h = 3m
Height of conical part, H = 13.5 – 3 = 10.5 m
Radius, r = 14 m