Which term represents the distance around a circle?

The term that represents the distance around a circle is known as circumference. This measurement is crucial in geometry and is defined as the total length of the boundary of the circle. Circumference can be calculated using the formula ( C = 2\pi r ), where ( r ) is the radius of the circle, or ( C = \pi d ), where ( d ) is the diameter. The value of ( \pi ) (approximately 3.14) is a constant that relates the diameter of the circle to its circumference.

The other terms refer to different properties of a circle. The area is a measure of the space contained within the circle, while the diameter is the distance across the circle through its center, which is double the radius. The radius itself is the distance from the center of the circle to any point on its perimeter. Understanding these definitions helps clarify why circumference specifically denotes the distance around the circle.