5. The total surface area, T, of any right circular cone with a radius r and a slant height s, such as the cone shown below, can be determined by using the formula . If a cone has a 3–inch radius and a 5–inch slant height, what is its total surface area, in square inches?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

Substituting the data in the question stem into the formula, we can know that T = π32+π3 ×5=24 π