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Circumference of a circle

In geometry, circumference is the distance around a closed curve; for example, a circle. It is a special kind of perimeter. The length of the circumference of a circle is often written as [math]C[/math],[1] with:[2][3]

[math]C= \pi d[/math]

where d is the diameter of the circle.

Related pages


  1. "List of Geometry and Trigonometry Symbols" (in en-US). 2020-04-17. 
  2. Weisstein, Eric W.. "Circle" (in en). 
  3. "Radius, diameter, & circumference | Circles (article)" (in en). 

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