If the radius of a circle is 8 feet the circumference is about 50.27 feet.
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Circumference of circle: 2*pi*8 = 50.265 feet to 3 decimal places
8 pi feet
It is 4/pi = 1.27 ft, approx.
A little over 25 feet ( 8 X Pi )
If the radius of the circle is 8 cm the circumference is: about 50.27 cm (r x 2 x pi = circumference).