The circumference of a circle is found using the formula C = d *PI where C is the circumference, d is the diameter of the circle, and PI is a constant value of 3.14159265... For general
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The formula for the circumference of a circle is. 2. πr. or. πd. C = pi x d (pi x diameter) or: C = 2 x pi x r (2 times pi times radius) (Pi or. π. is approximately 3.1416)
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The circumference of a circle is found by multiplying Pi by the diameter
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