# Ch 38: 8th Grade Math: Similar Polygons in Geometry

The videos in this chapter are meant to help 8th graders have fun learning about similar polygons. There are also lesson quizzes and a chapter exam available to make sure they have mastered the topic.

## 8th Grade Math: Similar Polygons in Geometry - Chapter Summary

Take full advantage of the video lessons in this chapter in order to reinforce concepts that have been introduced in the classroom. The short, engaging videos examine geometry concepts like geometric mean, similar triangles and the AA criterion and the triangle proportionality theorem in a way your 8th graders will remember. Parents and teachers can verify students' progress by using multiple-choice quizzes and a chapter exam at the end of the lesson.

## Chapter Lessons and Objectives

Lesson Objective
Ratios and Proportions: Definition and Examples In this lesson students learn about ratios and proportions.
Geometric Mean: Definition and Formula Instructors describe the geometric mean theorem.
Solving Problems Involving Proportions: Definition and Examples Students learn what proportional segments are and how to solve proportions.
Similar Polygons: Definition and Examples Students examine similar polygons and the AAA postulate.
Similar Triangles and the AA Criterion Chapter demonstrates how to use the properties of similarity transformations to determine the AA criterion for two triangles to be similar.
The Transitive Property of Similar Triangles Students build on previous lesson and learn the transitive property of similar triangles.
Triangle Proportionality Theorem Instructors show how to divide a triangle proportionally as well how to construct a segment proportional to three given line segments.
Constructing Similar Polygons Students learn to construct a polygon similar to a given polygon in this lesson.
Properties of Right Triangles: Theorems and Proofs Students practice using theorems related to the altitude and median of right triangles.

8 Lessons in Chapter 38: 8th Grade Math: Similar Polygons 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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