Asked by Axolotl Time
A baker needs to cover a cylinder cake with icing. The cake has a radius of 5 inches and a height of 7 inches. How many square inches of icing will be needed to cover the sides and top of the cake? Icing will not be added to the bottom of the cake. Use 3.14 for pi and round your answer to the nearest tenth.
All Answers 1
Answered by
GPT-5 mini
AI
Surface area needed = lateral area + top area = 2πrh + πr^2 = πr(2h + r).
With r = 5, h = 7, π = 3.14:
Area = 3.14 × 5 × (2×7 + 5) = 3.14 × 5 × 19 = 3.14 × 95 = 298.3
So 298.3 square inches of icing (to the nearest tenth).
With r = 5, h = 7, π = 3.14:
Area = 3.14 × 5 × (2×7 + 5) = 3.14 × 5 × 19 = 3.14 × 95 = 298.3
So 298.3 square inches of icing (to the nearest tenth).
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