A circus tent is cylindrical to a height of 3 m and conical above it. If its base radius is 52.5 m and slant height of the conical portion is 53 m, find the area of the canvas needed to make the tent
9735
9730
9720
9710
A
9710
B
9735
C
9730
D
9720
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Solution
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The correct option is A 9735 C.S.A of cylinder =2πrh C.S.A. of conical portion S2=πrl Area of canvas of tent =S1+S2 =2πrh+πrl =πr(2h+l) =227×52.5(3×2+53) =9735m2.
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