Vikidia will be in Read-Only mode from Wednesday to Sunday while we are performing a MediaWiki Upgrade. You'll still be able to read it.

Vikidia currently has 4,326 articles. Improve it!

Join Vikidia: create your account now and improve it!


From Vikidia, the encyclopedia for 8 to 13-year-old children that everybody can make better
Jump to: navigation, search

A circle is a geometrical figure where all its points are equidistant from a single point (the center). This distance is called the radius.

A circle is empty, a filled circle is a disc.

Properties[edit | edit source]

Perimeter[edit | edit source]

The perimeter of a circle is given by , where is the radius of the circle.

Area[edit | edit source]

The area or a circle is given by .

Arithmetic symbols.svg Mathematics Portal — All articles about mathematics.