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What is the formula of the area of a circle?

Updated: 8/16/2019
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Wiki User

12y ago

Best Answer

Area of a circle: Pi (22/7) times the radius squared.

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12y ago
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12y ago

You can use the radius or the diameter.

Area = Pi x radius2

or

Area = Pi/4 x diameter2

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Wiki User

11y ago

A = πr2 = πd2/4

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Q: What is the formula of the area of a circle?
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