how do you find the circumference of a circle.

C = pi * diameter

http://www.1728.com/diamform.htm

To find the circumference of a circle, you can use the formula:

Circumference = 2πr

Where:
- "Circumference" represents the total distance around the circle.
- "π" (pi) is a mathematical constant approximately equal to 3.14159.
- "r" represents the radius of the circle, which is the distance from the center of the circle to any point on its edge.

To calculate the circumference, you need to know the value of the radius. If you have the diameter of the circle, you can divide it by 2 to get the radius.

Once you have the radius, multiply it by 2π to find the circumference.