Question

The slant height and base diameter of a conical Tomb are 25 m and 14m respectively. Find the cost of whitewashing its curved surface area at the rate of ₹ 12meter square

Answer 1

Answer:

we have,

Slant height, l =25m

Radius =diameter/2=14m/2=7m

CSA=πrl

Cost of whitewashing:

=Rs 12×CSA

=Rs12×πrl

=Rs12×(22/7)×7×25

=Rs 6600