2.A: Proving Triangle Congruence

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Jan 11, 2020
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- Module 2 Topics
- 2.B: Other Triangle Properties

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Overview

The purpose of this lesson is to identify when we can claim two triangles are congruent.

This lesson will address the following CCRS Standard(s) for Geometry:

8.G.2: Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them
G.SRT.5: Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures

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Go to http://wamap.org and log into our course to complete assignment 2.A with 80% or better.

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Proving Triangle Congruence [9:13]

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Complete assignment 2.A with 80% or better at http://wamap.org

Summary

In this lesson we have learned:

To identify congruent triangles we need to know three parts are congruent: SSS, SAS, ASA, or AAS
The following combinations do not necessarily indicate congruence: ASS and AAA

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