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Ch 1: Chapter 1: Essentials of Geometry

About This Chapter

The Essentials of Geometry chapter of this Holt McDougal Larson Geometry Textbook Companion Course helps students learn the essential math lessons of polygons, midpoints and segments. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Essentials of Geometry textbook chapter.

How it works:

  • Identify the lessons in the Holt McDougal Larson Essentials of Geometry chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the essentials of geometry topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Angles, points and lines
  • The meaning and examples of polyhedron and planes
  • How to measure rays and line segments
  • Definition and examples of congruent
  • How to use the distance and midpoint formulas
  • How to build an angle bisector
  • Types of angle pairs
  • Meaning and examples of polygons

Holt McDougal Larson Geometry is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

9 Lessons in Chapter 1: Chapter 1: Essentials of Geometry
Test your knowledge with a 30-question chapter practice test
Points, Lines & Angles in Geometry

1. Points, Lines & Angles in Geometry

After watching this video lesson, you should understand the basic terms that form the foundation of geometry. Learn what a point is, what a line is, what an angle is, and learn about a special type of angle called a right angle.

Planes and the Polyhedron: Definition and Example

2. Planes and the Polyhedron: Definition and Example

Did you ever wonder what the pyramids in Egypt have to do with math? Watch this video to find out where in math a pyramid comes into play. Also, learn how flat, 2-dimensional shapes also come into play.

Line Segments & Rays: Definition & Measurement

3. Line Segments & Rays: Definition & Measurement

Watch this video lesson to learn the difference between a line segment and a ray. You will also learn how to measure and add line segments. Learn why you can't measure or add a ray.

Congruent in Math: Definition & Examples

4. Congruent in Math: Definition & Examples

In this lesson, you will find out how you can tell if two things are congruent or not. You will also see simple and more complex examples of congruency.

How to Use The Midpoint Formula

5. How to Use The Midpoint Formula

The formula for the midpoint of a line segment will tell you how to find the middle of any line segment on the x, y plane. Learn about this formula and see how it is used to find the midpoint of a line segment.

How to Use The Distance Formula

6. How to Use The Distance Formula

You can't always rely on your smartphone to tell you how far you need to travel to get from point A to point B. The distance formula will tell you the distance between any two points on a graph. In this lesson, you'll learn where it comes from and how to use it!

Constructing an Angle Bisector in Geometry

7. Constructing an Angle Bisector in Geometry

Watch this video lesson to learn a cool way to split an angle in half. You can use this method to split a pie slice in half where you can be sure each side is equal.

Angle Pairs: Types & Concept

8. Angle Pairs: Types & Concept

There are five major types of angle pairs in geometry. In this lesson, you'll explore the different types of angles and learn the rules of measuring those angles. When you finish the lesson, test your knowledge with a short quiz.

What Are Polygons? - Definition and Examples

9. What Are Polygons? - Definition and Examples

Watch this video lesson to see how the shapes that you grew up with are all related. Learn why the shapes of bricks, stars, and street blocks are considered polygons while the sun, moon, and rolling hills are not.

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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