The circumference of a circle with a radius of 5 meters is: about 31.42 meters.
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r = 5
The circumference of a circle of radius 5 is about 31.42
5 m (31.4 / 2 pi)
A circle with a radius of 5 units has a circumference of 31.42 units.
2*pi*5 (or 2*3.14*5)