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Explain how to find the circumference of a circle if you know the radius of the circle.​
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Explain how to find the circumference of a circle if you know the radius of the circle.​

User Haz
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C = 2•pi•r

Circumference = 2•pi•radius
User Dplante
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3 votes
Double the radius to get the diameter.
Then, multiply the diameter by pi to get the circumference.
User Lonnell
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