Question

Find the Surface Area of:

(When working this problem, round to the nearest tenth for the slant height and final answer. Use pi=3.14)

Answer 1

Below in bold.

Explanation:

The slant height = √(9^2+15^2)

= 17.49

= 17.5 in to the nearest tenth.

Surface area = 3.14r(r + 17.5)

= 9*3.14 * (9 + 17.49)

= 748.6 in^2 to the nearest tenth.

Answer 2

The surface area should be 749.07