# Ch 36: NES Math: Triangle Theorems & Proofs

Use our lessons to refresh your understanding of different types of triangle theorems and methods for proving them as you study for the NES Math test. The videos, quizzes and other tools in this study guide can support you in your test preparation.

## NES Math: Triangle Theorems & Proofs - Chapter Summary

This chapter's lessons offer a review of theorems and proofs about triangles that will help you answer these types of questions on the NES Math test. Topics covered in these videos include:

• Postulates of triangle congruence and congruence proofs
• Definition of converse
• How to prove relationships through congruence and similarity
• The angle-angle-side, hypotenuse angle and hypotenuse leg theorems
• The perpendicular bisector and angle bisector theorems
• Congruency of right triangles
• Proving congruency of isosceles triangles

Our instructors use humor and plenty of examples in lively lessons that you can watch anytime on a computer, smartphone or tablet. Short lesson quizzes let you assess your knowledge, and there's a clickable Timeline you can use to easily locate key passages in the video for review. You can track your progress through the Dashboard, a personalized tool that notes what lessons you've completed and may even suggest new courses that could help you.

### NES Math: Triangle Theorems & Proofs Chapter Objectives

In Arizona, New Mexico, Oregon, Washington and Wisconsin, applicants for teaching certification in secondary-level math must pass the NES Math test. The test consists entirely of multiple-choice questions which require you to solve a problem or read a question and select the best answer from several choices. The quizzes in our lessons are in this format and can provide good practice in test-taking as well as letting you evaluate what you've learned.

The NES Math test questions are divided into five content domains, and questions from the Triangle Theorems & Proofs chapter are in the Measurement and Geometry content domain. This part of the test accounts for 19% of the total scoring.

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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