# Ch 25: TExES Math 4-8: Triangles, Theorems & Proofs

This chapter's resources have been designed uniquely to help you get ready for the TExES Math 4-8 examination. These lessons on triangles, theorems and proofs might help you qualify to meet state certification standards.

## TExES Math 4-8: Triangles, Theorems & Proofs - Chapter Summary

The lessons of this chapter can help you master everything you need to know about triangles, theorems and proofs. Our videos and text transcripts will cover the following topics as they are included on the exam:

• Triangle congruence postulates and proofs
• Key theorems in context, including: AAS (angle-angle-side), HA (hypotenuse angle), HL (hypotenuse leg), perpendicular bisectors, angle bisectors, LA (leg-acute) and LL (leg-leg) congruency of right triangles and congruency of isosceles triangles
• Applying similar triangles
• Explaining statement converses

Our qualified instructors will guide you through each topic to prepare you for the exam. Use our tagging system to jump to specific video sections and use the text transcripts to review the concepts you need to brush up on.

### Objectives of the TExES Math 4-8: Triangles, Theorems & Proofs Chapter

The TExES Math 4-8 test assesses your total comprehension of mathematic concepts and strategies as well as your competency in teaching to determine whether you meet Texas state standards for mid-elementary level teacher licensing. This chapter's topics are part of the Geometry and Measurement domain, which makes up approximately 21% of the overall exam.

Use our accompanying self-check assessments to test your understanding of these crucial concepts while also familiarizing yourself with the types of questions you'll actually see on exam day. All of the questions on the TExES test are multiple-choice and are administered via computer.

11 Lessons in Chapter 25: TExES Math 4-8: Triangles, Theorems & Proofs
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.
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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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