C=2xPIxR
C=2 x 3.14 x 7
C=44 feet
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Circumference = pi x r squared: where pi = 3.14159 and r = radius (squared) Circumference = 3.14159 x 7 x 7= 153.938 feet
The radius of the circle is 7.
The circumference is about 43.98 inches. The circumference of a circle is diameter (radius x2) x pi (3.14).
circumference of a circle = 2*pi*radius or diameter*pi
Circumference of the circle = 7*pi feet