The circumference is 12.56 approximately
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A circumference is 4
The formula for circumference of a circle is 2πr. Since the radius is 4, the circumference is 8π or approximately 25.12 inches.
The circumference of a circle with a radius of 4 ft is: 25.13 feet (r x 2 x Pi = circumference).
The circumference is 12.57 feet. (radius x 2 x pi = circumference)
circumference formula is pi(diameter) diameter is 2(radius) radis=4; diameter=2(4)=8 pi(8)=circumference of the circle...this is the EXACT answer plug it into a calculator and you will get 25.1327412287 your welcome ;)