evanharmon44 evanharmon44

15-03-2019
Mathematics

contestada

A birthday cake in the shape of a circle needs to be decorated with icing. If the diameter of the cake is 5 inches, how much icing will it take to cover only the top of the birthday cake? (Do NOT round your answer)

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laurellee27 laurellee27

15-03-2019

19.63495408 inches²

Area of a circle = πr²

Diameter = 5

The radius is half the diameter.

Radius = 2.5

π × 2.5² = 19.63495408

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