Find the surface area of a pyramid or a cone, homework help

Find the surface area of a pyramid or a cone, homework help

Find the surface area of the cone in terms of piπ.

A cone has diameter 16 centimeters and slant height 20 centimeters, from the outside edge of its base to its top vertex.
20 cm 16 cm

The surface area of the cone is cmsquared.

(Simplify your answer. Type an exact answer in terms of piπ.)