Circumference of pool ball: 2*pi = 6.283 inches rounded to 3 decimal places
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484/7 = 69 and one seventh ft
Circumference of a circle = 2*pi*radius or diameter*pi
Because the standard cue ball used in American pocket billiards is 2.25 inches in diameter, the circumference is approximately 7.07 inches. You find this answer by using the formula for circumference of a circle given by C= 2 x pi x radius, where pi equals 3.14 and radius is 2.25 divided by 2 or 1.125 inches.
Circumference = 2*38*pi feet
The radius of a circle is half the diameter, so in this case, the radius of a 24-foot diameter pool would be 12 feet. The formula to find the radius from the diameter is: radius = diameter / 2. Therefore, the radius of a 24-foot diameter pool is 12 feet.