18*pi or 18*3.141592=56.55
Chat with our AI personalities
The circumference of a six-inch diameter circle is: 18.8 inches.
The circumference of a 4-inch diameter circle is: about 12.57 inches. (diameter x pi = circumference).
The circumference of a 10-inch diameter circle is: 31.4 inches.
The circumference of an 8-inch circle is: 25.1 inches.
The diameter of a circle with a circumference of 18 is: 5.73