Geometry Unit 4

Unit 4

This unit is about triangles. Parts of triangles, congruent triangles, proofs for congruent triangles, angle measures, and triangle constructions. This page is a collection of the videos that were created when we met for class. I am sharing these videos with my students, or with whom ever needs to have help with the Geometry of Triangles.

4.1 The Grammar of Triangles

4.2 Congruent Triangles

4.3 Short Cuts to Proving Triangles Congruent: Proving Triangles Congruent Part 1

4.4 More Shortcuts to Proving Triangles Congruent

Here is a video to help with the construction in Section 4.4

4.5 CPCTC

4.5 Properties of Isosceles, Equilateral, and Right Triangles