Divide the circumference by 2pi
Basically, the circumference of a circle is the perimeter of the circle.
circumference=pi x diameter
The circumference of a circle: 2*pi*radius or pi*diameter
It depends on what information you do have about the circle. For example, circumference = 2*pi*radius.
If you mean circumference of a circle then that is its Latin roots
It is 11.5 feet.
the circumference is the distance around a circle. Can be found by diameter * 3.14(pi).
It would be pi x 42 feet
The area of a circle is pi times radius squared
pi D = 10D = 10 / pi = 3.1831 inches (rounded)
In a circle Pi it the ratio of the circumference to the diameter. That is to say, if C is the cirumference and D is the diamter of any circle, we have: Pi=C/D