Circumference = pi X diameter
so..........
diameter = circumference/pi
50 feet/pi
= 15.92 feet
call it 16 feet
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If the circumference of a circle is 20 feet the diameter is: 6.366 feet (circumference divided by pi = diameter).
The circumference of a circle with a diameter of 50 feet is about 157.1 feet. (diameter x Pi = circumference).
A circle with a diameter of 9 feet has a circumference of about: 28.27 feet (diameter x Pi = circumference).
The circumference of a circle with a diameter of 2 feet is 6.28 feet.
If 8 feet is the diameter of a circle, the circumference is: about 25.13 feet.