Education Technology

Triangle Orthocenter Investigation

Published on 10/22/2009

Activity Overview

Investigating the locus of the orthocenter of a triangle as one vertex moves on a line parallel to the opposite side of the triangle -- fitting a quadratic function to this locus.

Before the Activity

Download the TNS file and make it available to students. Make copies of the handout as desired.

During the Activity

Work through the activity as indicated in the attached document.