The diameter of a cake is 7.8 inches. What is the area of the cake?

asked Mar 12, 2022 60.7k views

3 votes

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3 votes

Answer:

A = 12.25 sq inches

Explanation:

A = (7.8/2)²π

A = 3.9²π

A = 12.25 sq inches

4.9k points

7 votes

A = πr^2
The radius is half of the diameter.
r = 7.8 / 2
r = 3.9

A = π(3.9)^2
A ≈ 47.78

VirtualLogic answered Mar 16, 2022

6.1k points

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