Circumference of a circle = 2*pi*radius or pi*diameter
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the circumference is 21.98 inches
Pie is something to eat.Pi is a number, approximately but not exactly 3.14, and is equal to the circumference of a circle divided by the diameter.
The circumference of a circle with an area of 3 acres is: 1,281 feet.
0.045 acres.
A circle with a circumference of 188 miles has an area of about 1,800,055 acres.