Question

A Circus tent is cylindrical to a height of 3 m and conical above it. If the diameter of the base is 140 m and the slant height of the conical portion is 80 m, the length of canvas 2 m wide required to make the tent is

• A. 8960 m
• B. 9660 m
• C. 9460 m
• D. 9860 m

Answer 1

Answer: (C)

9460 m

Answer 2

Surface area of the tent $=2\pi rh+\pi rl$
$=\pi r(2h+1)$
$=\frac{22}{7}×70(2×3+80)$
$=18920$
Width of the canvas $=2m$
∴Length of the Canvas required to make the tent $=\frac{18920}{2}=9460$ m
Hence, option C is the correct answer. The correct option is (C): 9460 m