Ch 37: WEST Math: Parallel Lines & Polygons

About This Chapter

Use these engaging video lessons to review parallel lines and polygons as part of your WEST Math certification examination preparation. Short quizzes let you practice using the concepts, and our instructors are available to offer guidance if you get stuck.

WEST Math: Parallel Lines & Polygons - Chapter Summary

This chapter uses short video lessons that are easily viewed from any Internet-enabled device. You can conveniently review the parallel lines and polygons concepts you need to know for the WEST Math test for teacher certification. Lesson topics include:

  • Methods for proving that two given lines are parallel
  • Transversal angles
  • Diagonals in polygons
  • Types and components of polygons
  • How to determine area and perimeter of polygons
  • Methods for measuring the angles of polygons

Video transcripts make it easy to track down key concepts and terms. Use the lesson quizzes to determine how well you've mastered the information. If you have any questions about the material, don't hesitate to reach out to our instructors.

Objectives of the WEST Math: Parallel Lines & Polygons Chapter

This chapter offers entertaining, accessible video lessons and transcripts, lesson quizzes and instructor support to help you master the parallel lines and polygons concepts you'll likely encounter as you take the WEST assessment for mathematics certification. Multiple-choice lesson assessments are styled after WEST exam tasks, allowing you to practice test-taking in the WEST format before your assessment date.

The 150 tasks on the exam cover five content domains: mathematical processes and number sense, accounting for 19% of your score; patterns, algebra and functions, accounting for 24%; measurement and geometry for 19%; trigonometry and calculus for 19%; and statistics, probability and discrete mathematics for 19%. Your exam results will be available as you complete the test and your full score report will be released within two weeks.

9 Lessons in Chapter 37: WEST Math: Parallel Lines & Polygons
Test your knowledge with a 30-question chapter practice test
Angles Formed by a Transversal

1. Angles Formed by a Transversal

When you have a pair of parallel lines and a transversal, something very interesting happens to the angles that are formed. You can see this happen in real life at street intersections and such. Watch this video lesson to learn about all of this.

Parallel Lines: How to Prove Lines Are Parallel

2. Parallel Lines: How to Prove Lines Are Parallel

Watch this video lesson to learn how you can prove that two lines are parallel just by matching up pairs of angles. Learn which angles to pair up and what to look for.

Using Converse Statements to Prove Lines Are Parallel

3. Using Converse Statements to Prove Lines Are Parallel

Because a pair of parallel lines produces unique angle characteristics, we can use this information to our advantage. Watch this video lesson to see how we turn this advantage into converse statements to help us prove parallel lines.

The Parallel Postulate: Definition & Examples

4. The Parallel Postulate: Definition & Examples

In this lesson, you will learn about an important postulate in Euclidean geometry, called the Parallel Postulate. It sounds kind of hard, but this lesson explains it in simple terms and provides several examples of it as well.

Regular Polygons: Definition & Parts

5. Regular Polygons: Definition & Parts

What makes a polygon a polygon? And what shapes are considered polygons? In this lesson, find out the answers to these questions and more as we learn all about polygons and their parts.

How to Find the Number of Diagonals in a Polygon

6. How to Find the Number of Diagonals in a Polygon

At first, you might think that the diagonals of a polygon are pretty useless, but watch this video lesson to learn how diagonals are used in real life. You will learn the formula to find how many diagonals a polygon has as well as how to use it.

Finding the Perimeter of Polygons

7. Finding the Perimeter of Polygons

In this video lesson, you will learn the process you need to take to find the perimeter of polygons. You will also learn that there is a shortcut if your polygon is a regular polygon.

Measuring the Area of Regular Polygons: Formula & Examples

8. Measuring the Area of Regular Polygons: Formula & Examples

Watch this video lesson to learn why a regular polygon makes your life easier when it comes to finding the area inside one. Learn the one formula for area that will work for any type of regular polygon.

How to Measure the Angles of a Polygon & Find the Sum

9. How to Measure the Angles of a Polygon & Find the Sum

Watch this video lesson to learn the one formula that lets you find the measure of angles in any regular polygon. Also, learn how you can tell if you are working with a regular polygon or not.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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