Triangle Components

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This worksheet shows some of the various components of a triangle ABC.

• "Altitudes" extend from a vertex and are perpendicular to the opposite side. They intersect at the "orthocenter".
• "Medians" extend from a vertex and bisect the opposite side. The "center of gravity" lies at their point of intersection.
• "Bisectors" extend from a vertex and bisect the angle at that vertex.
• A "circumcircle" circumscribes a triangle. The "circumcenter" lies at its center.
• An "incircle" is the largest possible circle than can fit within a triangle. The "incenter" lies at its center, and is also the point of intersection of the bisectors.

Download the worksheet here.

Listed works are licensed under a Creative Commons GNU Lesser General Public License License.

This page © Copyright 2009 Michael Horvath. Last modified: February 21 2010 20:38:14.