c=πd
or
c=2πr
Basically, the circumference is either π times the diameter of the circle or π times twice the radius.
π (Pi) can be approximated as 3.14159
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The perimeter of a circle is called the circumference and the formular of finding it is Pi D or 2Pi R
The circumference of a 34mm circle is: 107 mm
The circumference of this circle is about 14.45 units.
The circumference is the length around the outside of the circle. The circumference is equal to 2pieR (2xPiexRadius)
A circle has the radius of 27.7 cm what is the approximate circumference of the circle? The circumference is approx. 174 centimeters.