36 feet across, 18 feet from centre to circumference, or 113.1 ft (approx) around the circle.
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The circumference of a circle with a 31 foot diameter is 97.4 feet, approx.
The circumference of a circle with a diameter of 3 feet is 9.4 feet.
Well, friend, in a 10-foot diameter circle, you would have a circumference of about 31.42 feet. This means if you were to straighten out the circle into a line, it would be about 31.42 feet long. Isn't that just a happy little fact to know?
A lineal or linear foot is the same as a foot so a 16 feet diameter is the same as a diameter of 16 lineal feet.
Circumference of the circle in feet = 24*pi Area of the circle in square feet = pi*122