# Ch 30: TExES Physics/Math 7-12: Properties of Triangles

As you prepare for the TExES Physics/Math 7-12 exam, you may want to review what you know about the properties of triangles. Watch the lesson videos in this chapter to improve your knowledge on the equations used to calculate the properties of triangle, classifications of triangles and identifying similar triangles.

## TExES Physics/Math 7-12: Properties of Triangles - Chapter Summary

As part of your preparation for the Texas Examination of Educators Standards (TExES) Physics/Mathematics 7-12 exam, be sure to review what you need to know about the properties of triangles. In this series of lesson videos, watch our professional instructors discuss the definitions of the different types of triangles and the equations used to determine their properties. After watching these videos you should have a better understanding of:

• Properties of a triangle
• Finding the area and perimeter of triangles
• How triangles are classified by angles and sides
• Interior and exterior angles of triangles
• Identifying similar triangles
• Finding the median of a triangle
• Constructing triangles
• Properties of concurrent lines and dilations

After watching these lesson videos, complete the lesson worksheets to fortify your understanding of the material. Improve your understanding of un-mastered material by returning to the key points in the lesson videos with video tags. If you feel you would benefit from an alternative way to review the material, read over the lesson transcripts. If at any time you have any questions, ask our expert instructors for assistance so that you can effectively master the material before you take the TExES Physics/Mathematics 7-12 exam.

### TExES Physics/Math 7-12: Properties of Triangles Objectives

The TExES Physics/Mathematics 7-12 test is a computer-based certification test used in the state of Texas to certify physics and math teachers. The objective of this chapter is to prepare you for questions related to the properties of triangles. These questions are found within the subsection on geometry and measurements, which makes up 10% of the 120 multiple-choice questions on the test.

Watch the lesson videos as they step through example problems finding different measurements of triangles then practice on your own with the quizzes to get the full use of this chapter and to be prepared for related questions on the TExES Physics/Mathematics 7-12 exam.

12 Lessons in Chapter 30: TExES Physics/Math 7-12: Properties of Triangles
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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