Copyright

Ch 41: NMTA Middle Grades Math: Triangles

About This Chapter

Bring back memories of geometry classes about triangles as you review this chapter to prep for the NMTA Middle Grades Mathematics test. If you need any extra assistance, you may reach out to our experts for help.

NMTA Middle Grades Math: Triangles - Chapter Summary

Analyze this chapter as you recall the geometric properties and formulas associated with triangles. Get in some good memorization sessions for the NMTA Middle Grades Mathematics test while you use our materials to look at these key concepts:

  • The properties of triangles
  • How to classify and construct triangles
  • Exterior and interior angles
  • Angle bisectors, altitude, and median
  • Concurrent lines

Take the time to refresh your memory about triangles by checking out each of our brief video lessons for this chapter. Evaluate the real world examples that our instructors use as they go over the information. If term memorization helps you study more effectively, consider going through our transcripts to find all the major keywords set off in bold. You can switch lessons easily with one click, and you can use the scroll bar to look at other lesson titles in the chapter. While reviewing for the NMTA Middle Grades Mathematics test, you may realize that you need additional assistance beyond triangles, but lucky for you we have other chapters available that cover all the major topics addressed in the test.

NMTA Middle Grades Math: Triangles - Chapter Objectives

For New Mexico middle school educators looking to get an endorsement to teach mathematics, you will need to pass the NMTA Middle Grades Mathematics test. On the day of the test, you will use a computer interface to choose the best answers for 150 multiple-choice questions. The test has been designed to gauge how well you understand mathematics across four of the major areas in the field, including statistics, number sense, algebra, and geometry. The more time you spend looking at our video lessons to learn everything about triangles, the better suited you will be to answer related questions in the geometry section of this test, that accounts for 25% of the total questions.

9 Lessons in Chapter 41: NMTA Middle Grades Math: Triangles
Test your knowledge with a 30-question chapter practice test
Triangles: Definition and Properties

1. Triangles: Definition and Properties

What makes a shape a triangle? In this lesson, we'll explore the definition of a triangle, then analyze the parts of triangles, including the vertices, base and height.

Classifying Triangles by Angles and Sides

2. Classifying Triangles by Angles and Sides

Not all triangles are the same. There are equilateral, isosceles and scalene triangles. Then there are right, acute and obtuse triangles. In this lesson, we'll learn how to classify triangles using their sides and angles.

Interior and Exterior Angles of Triangles: Definition & Examples

3. Interior and Exterior Angles of Triangles: Definition & Examples

Knowing just a few things about the interior or exterior angles of triangles is sometimes all you need to put all the pieces together. Find out more in this lesson.

How to Identify Similar Triangles

4. How to Identify Similar Triangles

Similar triangles have the same characteristics as similar figures but can be identified much more easily. Learn the shortcuts for identifying similar triangles here and test your ability with a quiz.

Angles and Triangles: Practice Problems

5. Angles and Triangles: Practice Problems

Want more practice solving with angle pairs? How about more review for solving angles in triangles? Look no further. Get more practice here, and test your ability with a quiz.

Constructing the Median of a Triangle

6. Constructing the Median of a Triangle

If you have one triangle and want to divide it, you can use a median line. Medians have special geometric properties that we'll learn about in this lesson.

Median, Altitude, and Angle Bisectors of a Triangle

7. Median, Altitude, and Angle Bisectors of a Triangle

Line segments in triangles are just clutter; they have special names and qualities depending on how they're drawn. In this lesson, we'll learn about medians, altitudes and angle bisectors.

Constructing Triangles: Types of Geometric Construction

8. Constructing Triangles: Types of Geometric Construction

When you're asked to construct a triangle, it's time to break out that compass and straight edge! In this lesson, find out how to construct triangles no matter what you're given.

Properties of Concurrent Lines in a Triangle

9. Properties of Concurrent Lines in a Triangle

Centroids, orthocenters, incenters, circumcenters, oh my! Don't worry though. In this lesson, we master the various terms for concurrent lines in triangles and match them to altitudes, angle bisectors, perpendicular bisectors and medians.

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Other Chapters

Other chapters within the NMTA Middle Grades Mathematics (203): Practice & Study Guide course

Support