Question

Determine the surface area of a cone if the radius of the base is 8 in. and the slant height of the cone is 10 in. Use π=3.14 and round your answer to the nearest hundredth.(1 point)
in.2

Answer 1

Surface area = base area + lateral area = πr^2 + πrl = π(64) + π(8)(10) = 144π.

Using π = 3.14: 144 × 3.14 = 452.16 in^2.