Definition:Circumcircle of Triangle

Circumcircle
The circumcircle of a triangle is the circle that passes through all three of the triangle's vertices to each side of the triangle. This circle is said to circumscribe the triangle.

Circumcenter
The center of an circumcircle is called a circumcenter.

Circumradius
The radius of an circumcircle is called a circumradius.

Compare To
Compare circumcircles to incircles and excircles.