# Chapter 4: Triangles and Congruence

Difficulty Level:

**At Grade**Created by: CK-12

In this chapter, you will learn all about triangles. First, we will find out how many degrees are in a triangle and other properties of the angles within a triangle. Second, we will use that information to determine if two different triangles are congruent. Finally, we will investigate the properties of isosceles and equilateral triangles.

## Chapter Outline

- 4.1. Triangle Sums
- 4.2. Congruent Figures
- 4.3. Triangle Congruence using SSS and SAS
- 4.4. Triangle Congruence using ASA, AAS, and HL
- 4.5. Isosceles and Equilateral Triangles
- 4.6. Chapter 4 Review
- 4.7. Study Guide

### Chapter Summary

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## Description

This chapter explores the properties of triangles, specifically their angles. Students learn the different methods used to determine congruency. Also covered is an introduction to isosceles and equilateral triangles.

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## Date Created:

Feb 22, 2012## Last Modified:

Apr 29, 2014
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