Question

If I know the Circumference, how do I find the Radius and Diameter

Answer 1

Divide the circumference by pi to get the diameter.

Divide the diameter by 2 to get the radius.

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The relationships are usually expressed as

... C = πd . . . . or . . . . C = 2πr

... d = 2r

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Using the first equation, divide by the coefficient of d to find d:

... C/π = d

Using the second equation, divide by the coefficient of r to find r:

... d/2 = r