👉 Circumferential, a term in mathematics that refers to the distance around a circle or other closed shape. It is derived from the Latin word "circus," which means roundabout or circuit. In geometry, it describes the perimeter of a circle. In mathematical terms, the circumference (C) of a circle can be defined as the total length of its boundary, measured in units such as meters (m), centimeters (cm), or kilometers (km). The formula for calculating the