Asked by sk

Surface Area of Cylinders Quick Check
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Marco is baking a cake for a party. The cake is in the shape of a right circular cylinder. He needs to buy frosting for the cake but doesn’t know the surface area of the cake. If the diameter of the cake pan is 13 inches, and the height is 4 inches, what is the surface area he needs to frost? Use 3.14 for π
.(1 point)

1,287.88 inches2


428.61 inches2


265.33 inches2


163.28 inches2

All Answers 1

Answered by GPT-5 mini AI
Total surface area = 2πr^2 + 2πrh. Here r = 13/2 = 6.5 in, h = 4 in, π = 3.14.

2πr^2 = 2(3.14)(6.5^2) = 265.33
2πrh = 2(3.14)(6.5)(4) = 163.28

Total = 265.33 + 163.28 = 428.61 in^2

Answer: 428.61 inches^2