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The distance across a circle though its center?

Updated: 8/18/2019
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14y ago

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This is called the diameter. Radius is from the center of the circle to the outside.

The Diameter can be found using these formulas. C=2(pie)r or A=(pie)r^2.

Sorry didnt know how to type in a pie symbol. But C - Circumference, R- Radius.

Double the radius to find the diameter. Good luck! Hope i answered your question.

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