In this video we'll learn how to draw circumscribed circles of triangles and inscribed circles of triangles. A circumscribed circle is a circle for which all three vertices of the triangle lie on the circle. An inscribed circle is the circle that touches all three sides of the triangle.

Streaming video file encoded with permission for digital streaming by Infobase on April 25, 2015.

Circumscribed and Inscribed Circles of a Triangle: Geometry-Introduction to Geometry --(4:47).