Question

How many square metres of canvas is required for a conical tent whose height is 3.5 m and the radius of the base is 12 m?

Answer 1

According to the question,

Dimensions of conical tent are:

Height = 3.5 m

Radius = 12 m

Curved surface area of cone = πr√(r² + h²)

= 22/7 × 12 √(12² + 3.5²)

= 22/7 × 12 × √156.25

= 22/7 × 12 × 12.5

= 471.43 m²

Since, area of canvas = curved surface area of conical tent

Therefore, area of canvas required is 471.43 m².