Circumference
 |
|
The circumference of a circle is the length of its perimeter.
Circumference is a middle school-level concept. It is listed in the California State Standards for Grade 6.
Prerequisites
| Circle: | A circle is the set of points in a plane that are equidistant from a given center point. |
| Perimeter: | The perimeter is a length around the boundary of a closed two-dimensional region. The perimeter of a circle is called its circumference. |
| Pi: | Pi is the mathematical constant defined as the ratio of the circumference of a circle to its diameter with value of approximately 3.14159. |