Education Technology

Geometry: Special Segments in Triangles
by Texas Instruments

Updated on February 16, 2015

Overview

Students will construct and explore medians, altitudes, angle bisectors, and perpendicular bisectors of triangles. They then drag the vertices to see where the intersections of the segments lie in relation to the triangle, and they measure distances to identify relationships.

Key Steps

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    Students will use Cabri Jr. to construct a angle bisector for one angle.

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    Students will see that the three angle bisectors of the triangle intersect each other at one point.

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    Finally, students will create a circle in the inside of the triangle.