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Question

A circus tent is cylindrical to a height of 3 m and conical above it. If its base radius is 52.5 m and the slant height of the conical portion is 53 m, find the area of canvas needed to make the tent. [Take π=227]


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Solution

Height = h = 3 metres

Slant height = l = 53 metres

Radius = r = 52.5 metres

Area of canvas required = C.S.A of cone = πrl
= 227 × 52.5 × 53
= 8745 m²


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