Question

A circus tent is cylindrical to a height of 5 m and conical above it. If its diameter is 42 m and slant height of the cone is 53 m, calculate the total area of the canvas required. 

Answer 1

Height of the cylinder = h = 5 m 

Slant height of the cone = I = 53 m 

Diameter = 42 m ⇒ radius = r = 21 m 

Area of the canvas used = Curved surface area of cylinder + curved surface area of cone 

= `2pirh + pirl`

= `(2 xx 22/7 xx 21 xx 5) + (22/7 xx 21 xx 53)`

= 660 + 3498

= 4158 m²

Area of the canvas required = 4158 m²