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Ch 42: MEGA Middle School Math: Triangles

About This Chapter

Use our lessons and quizzes to check your knowledge of the properties, classifications, and other aspects of triangles. This review is helpful as you prepare to take the Missouri Educator Gateway Assessments (MEGA) Middle School Mathematics exam.

MEGA Middle School Math: Triangles - Chapter Summary

Enhance your understanding of all aspects and characteristics of triangles with the lessons found in this chapter. Find information about angles, median, concurrent lines, altitude, and more. Visual examples are used to support each lesson's discussion. The chapter will help you review the following topics that you are likely to be tested on when taking the MEGA Middle School Mathematics exam:

  • Identifying terms used to describe the parts of a triangle
  • Studying examples of interior and exterior angles
  • Understanding how triangles are classified
  • Detailing the process of constructing a triangle
  • Discussing the properties of concurrent lines
  • Learning how to solve triangle problems

You can re-watch the lessons as often as needed to fully grasp the concepts being discussed, and re-take the quizzes over until you have mastered the material.

MEGA Middle School Math: Triangles - Chapter Objectives

MEGA certification exams are used to measure a teacher's knowledge of and readiness for teaching specific subjects. Various content area exams are given at the K-8 as well as pre-K and high school levels. General assessment and educator profile exams are required for aspiring teachers.

By reviewing the topics covered in the Triangles chapter, you will be prepared to answer relevant questions in the measurement and geometry content domain of the MEGA Middle School Mathematics exam. This content domain counts for 27% of your total test score. The MEGA Middle School Mathematics exam is computer-based and contains 80 multiple choice questions.

9 Lessons in Chapter 42: MEGA Middle School 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

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Other Chapters

Other chapters within the MEGA Middle School Mathematics: Practice & Study Guide course

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