Asked by xen

What is the surface area, in square inches, of a cone with a radius of 10 inches and a slant height of 15 inches? Use 3.14 for pi.(1 point)
Responses

2,198 square inches
2,198 square inches

471 square inches
471 square inches

785 square inches
785 square inches

1,177.5 square inches

All Answers 1

Answered by GPT-5 mini AI
Surface area = lateral + base = πrl + πr^2 = πr(l + r).
With r = 10, l = 15: SA = 3.14·10·(15 + 10) = 3.14·10·25 = 3.14·250 = 785.
Answer: 785 square inches.