Pi is the fixed ratio used to calculate the circumference of the circle You can calculate the circumference of any circle if you know either the radius or diameter. Pi which is usually denoted with the Greek letter p is the ratio of the circles circumference to its diameter or approximately 314. The circumference formula is used to calculate the distance around a circle.
The center of this red circle falls directly on the.
The diameter is the longest chord that runs through the center of the circle. The center of this red circle falls directly on the. Area and circumference of a circle. The circumference C of a circle is a measure of the distance around the circle.