# Ch 31: 8th Grade Math: Triangles in Geometry

This chapter's videos are designed to teach 8th graders all about triangles in a fun, light-hearted way. There are lesson quizzes and a chapter exam for you to use to measure what they have taken away from the chapter.

## 8th Grade Math: Triangles in Geometry - Chapter Summary

Do you want your students to understand triangles? The clever and short video lessons in this chapter strive to engage students while teaching them triangle parts, types, constructions, and techniques in ways they won't forget. You can determine your students' understanding by using multiple-choice quizzes and a chapter exam at the end of the lesson.

## Chapter Lessons and Objectives

Lesson Objective
Triangles: Definition and Properties Students learn vocabulary terms related to triangles like adjacent, vertex, vertices, side, opposite, base, apex, and height.
Classifying Triangles by Angles and Sides With this lesson, students use the angles and sides of triangles to determine the triangle type.
Interior and Exterior Angles of Triangles: Definition and Examples Instructors explain how to identify the interior and exterior angles of triangles.
How to Identify Similar Triangles Students learn ways to identify similar triangles.
Angles and Triangles: Practice Problems Students have the chance to practice solving for angles and triangles.
Constructing the Median of a Triangle Chapter leads students through the steps of constructing the median of a triangle.
Median, Altitude, and Angle Bisectors of a Triangle Students learn the meanings of median, altitude, and angle bisectors and ways to identify them in a triangle.
Constructing Triangles: Types of Geometric Construction In this lesson, students learn to construct triangles using different combinations of given sides and angles.
Properties of Concurrent Lines in a Triangle Students examine some properties of concurrent lines in a triangle, such as centroid, altitude, angle bisector, incenter, and orthocenter.

9 Lessons in Chapter 31: 8th Grade Math: Triangles in Geometry
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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