Question

Calculate the surface area of the composite figure

Answer 1

Below in bold.

Explanation:

Total surface area = 1/2 * area of a sphere + area of the side o a cone

= 1/2 * 4 π r^2 + π r L

= 1/2 * 4 π 7^2 + π*7*25

= 307.876 + 549.779

= 857.65 in^2 to nearest hundredth.