There is no exact answer it depends on the circle. It is however you make it.
Exact area of the circle: 9*pi inches
The diameter of a circle is the length of a straight line that goes through the exact center of a circle. The radius of a circle is the length of a straight line that starts at the exact center and reaches the circle. The radius is half the length of the diameter.
It is a diameter, the line that cuts the circle in an exact half.It is the diameter and passes through the center of the circle.
Exact area of the circle: 9*pi inches
The diameter would be approximately 7. In exact figures it would be 7
the exact circumference is 11pi inches
About 20 to 25 miles, but it not an exact circle.
65.94
The answer is 1017.87601976.
1075.210086
150.8
Circumference of the circle: 7.4*pi cm