10 inches
* * * * *
Actually it is 10.504 which should be rounded to 11 inches.
Chat with our AI personalities
The circumference of 9 inch diameter circle is about 28.27 inches.
The circumference of a circle with a 39 inch diameter is 122.52 inches.
circumference = pi * diameter so, diameter = 9/ pi = 2.86
The circumference of a 42-inch diameter circle is: ~131.95 inches.
The circumference of a 24-inch diameter circle is about 75.4 inches. (C = d x Pi)