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How do you find the area of a 9 inch diameter circle?

Updated: 10/26/2022

Wiki User

∙ 13y ago

Best Answer

Pie or 3.14 times the radius squared. Half of 9 is 4.5, that is your radius. Now 4.5 squared is 20.25. Take 20.25 and multiply 3.14 which = 63.585 or orund the answer up to 63.86

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∙ 13y ago

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19.63 square inches are in the area of a 5-inch diameter circle.

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The area of a 3-inch diameter circle is about 7.068 square inches.

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The area of a 26-inch diameter circle is 530.93 square inches.

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The area of 3.5-inch diameter circle is: 9.621 square inches.

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The area of a 18-inch diameter circle is: 254.5 square inches.

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