Pi (π) is defined as the ratio of a circle's circumference to its diameter. Therefore, the circumference divided by the diameter is pi (π).
This relationship is fundamental to understanding and calculating properties of circles. The circumference (C) of a circle is calculated by the formula C = πd, where 'd' is the diameter. Rearranging this formula, we get π = C/d. This directly illustrates that pi is the circumference divided by the diameter.
