Circumference = pi x diameter = pi x 13 = 40.84 feet or 40'10"
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The circumference of a circle with a diameter of 13 mm is: 40.84 mm
Circumference of a circle = diameter x (pi) = 13 pi = 40.841 feet (rounded)
The radius of a circle with a circumference of 13 feet is: 2.069 feet.
Circumference = Pi x d: 3.14 x 13 = 40.82 feet
Circumference = (pi) x (diameter) = 13 pi = 40.84 ft(rounded)