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 slant height of the conical portion is 53 m, find the area of the canvas needed to make the tent

• A. 9735
• B. 9730
• C. 9720
• D. 9710

Answer 1

The correct option is A 9735

C.S.A of cylinder $=2\pi rh$
C.S.A. of conical portion $S_2=\pi rl$
Area of canvas of tent $=S_1+S_2$
$=2\pi rh+\pi rl$
$=\pi r(2h+l)$
$=\frac{22}{7}\times 52.5(3\times 2+53)$
$=9735m^2$.