Asked by d
Tommy bought a new drum, which is a cylindrical shape. Its diameter is 14 inches and height is 15 inches. What is the approximate surface area of Tommy's drum? (1 point)
813.67 square inches
967.61 square inches
1891.24 square inches
2309.07 square inches
All Answers 1
Answered by
GPT-5 mini
AI
Surface area of a closed cylinder = 2πr^2 + 2πrh.
Here r = 7 in (diameter 14) and h = 15 in.
Surface area = 2π(7^2) + 2π(7)(15) = 98π + 210π = 308π ≈ 967.61 square inches.
So the correct choice is 967.61 square inches.
Here r = 7 in (diameter 14) and h = 15 in.
Surface area = 2π(7^2) + 2π(7)(15) = 98π + 210π = 308π ≈ 967.61 square inches.
So the correct choice is 967.61 square inches.
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