Difference between revisions of "Circumcircle"
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The radius of the circumcirle is known as the [[circumradius]]. For triangles, the circumradius appears in a number of significant roles, such as in the [[Law of Sines]]. | The radius of the circumcirle is known as the [[circumradius]]. For triangles, the circumradius appears in a number of significant roles, such as in the [[Law of Sines]]. | ||
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Revision as of 17:51, 17 August 2006
This article is a stub. Help us out by expanding it.
The circumcircle of a triangle or other polygon is the circle which passes through all of its vertices. Every triangle has a circumcircle, but most other polygons do not. For instance, those quadrilaterals with circumcircles form a special class, known as cyclic quadrilaterals.
The center of the circumcircle is known as the circumcenter. It is the intersection of the perpendicular bisectors of the edges of the polygon.
The radius of the circumcirle is known as the circumradius. For triangles, the circumradius appears in a number of significant roles, such as in the Law of Sines.
