Question

Find the lateral area of a cone with a radius of 7ft and a slant height of 13 ft. Use 3.14 for pi and round to the nearest tenth

Answer 1

Lateral surface area is finding the area of the sides of a three-dimensional geometric figure. For a cone it is expressed as follows:

A=πr √(h^2+r^2)

or when a slant height is given


A=πrl

We calculate as follows:

A=π7(3) = 65.94 ft^2