A circus tent has cylindrical shape surmounted by a conical roof. The radius of the cylindrical base is 20 m. The heights of the cylindrical and conical portions are 4.2 m and 2.1 m respectively. Find the volume of the tent.
Given radius of Cylindrical base = 20 m
Height of Cylindrical part (h) = 4.2
Volume of Cylindrical = 
….(1)
V1 =π(20)2 4.2
= 5280 m3
Volume 0f Cone =
Height of conical part (h) = 2.1 m …..(2)
V2 
(20)2 (2.1)
= 880 m3
Volume of tent (v) = V1 + V2
V = 5280 + 880
= 6160 m3
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