kidzsearch.com > wiki Explore:web images videos games
Circumference
KidzSearch Safe Wikipedia for Kids.
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
References
 ↑ "List of Geometry and Trigonometry Symbols" (in enUS). 20200417. https://mathvault.ca/hub/highermath/mathsymbols/geometrytrigonometrysymbols/.
 ↑ Weisstein, Eric W.. "Circle" (in en). https://mathworld.wolfram.com/Circle.html.
 ↑ "Radius, diameter, & circumference  Circles (article)" (in en). https://www.khanacademy.org/math/ccseventhgrademath/cc7thgeometry/cc7thareacircumference/a/radiusdiametercircumference.
Other websites
 Numericana  Circumference of an ellipse
 Circumference of a circle With interactive applet and animationfa:پیرامون یک خم بسته

