Question

The height of a conical tent is 28 m and the diameter of the base is 42 m. Find the cost of the canvas used at Rs 20/- per sq. m.

Answer 1

Height of the conical tent (h) = 28 m

Diameter of the base of the tent = 42 m

∴ Radius of the base of tent (r) = 21 m

Slant height of the tent (l)

Curved surface area of the tent

Cost of 1 m² canvas = Rs 20

∴ Cost of 2310 m² canvas

Thus, the cost of the canvas used in the conical tent is Rs 46200.