It is 7.64 units, approx.
The circumference of a 24 foot diameter circle is about 758.4 feet. (C = d x Pi)
Circumference: 24*pi = 75.398 feet to 3 decimal places
It depends on what you mean by a 24 foot circle: around it (circumference) or across it (diameter)? If circumference, then volume = 201.7 cubic ft If diameter, then 452.4 cubic feet.
The diameter of a circle with a 12-foot circumference is about 3.82 feet. (circumference divided by Pi = diameter).
The circumference of a 8 foot diameter circle is about 25.13 feet.
The circumference of a 19 foot diameter circle is: 59.7 feet.
The circumference of circle with 60-foot diameter is: 188 feet.
The circumference of a 27-foot diameter circle is about 84.82 feet. (diameter x Pi = circumference).
If a circle has a diameter of 24 inches its circumference is: 75.4 inches (diameter x Pi = circumference).
The formula is pi times diameter. If the diameter is 1 foot, times 3.14, the circumference will be 3.14 feet.
An 8-foot diameter circle has a circumference of about 25.132 inches.
circumference = {pi} x diameter circumference = {pi} x 24ft ~= 75.4ft