Education Technology

McDougal Littell Geometry: Investigate Triangles and Congruence

Published on 10/17/2008

Activity Overview

Students will use the TI-84 Plus family with Cabri Jr. to prove triangle congruence with SSA.

Before the Activity

  • Review the activity PDF file
  • Make copies of the activity PDF file for your class
  • During the Activity

    Students will:

  • Use Cabri Jr. to draw two triangles.
  • Use SSA to prove them similar.


  • Directions:
  • Distribute the student activity sheets
  • Follow the procedures as outlined
  • After the Activity

    As a class, review student progress, discussing questions that appeared to be more challenging, and re-teaching as needed.