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The distance around a circle is called the circumference.

en.wikipedia.org/wiki/Circumference

The circumference of a closed curve or circular object is the linear distance around its edge. The circumference of a ...

www.mathgoodies.com/lessons/vol2/circumference.html

Circumference of a circle is presented in this interactive lesson from Math Goodies. Learn circumference at your own pace.

The usual definition of pi is the ratio of the circumference of a circle to its diameter , so that the circumference of a circle is pi times the diameter, or 2 pi times the ...

Learn the relationship between the radius, diameter, and circumference of a circle.

The distance around a rectangle or a square is as you might remember called the perimeter. The distance around a circle on the other hand is called the ...

Find the circumference of a circle when given either the radius or diameter. Find the radius or diameter of a circle when given the circumference.

virtualnerd.com/pre-algebra/perimeter-area-volume/circles/circumference/circle-circumference-from-diameter

Then you can use the formula for the circumference of a circle to get the answer! ... diameter; pi; multiply; pi times diameter; solve for circumference of a circle ...