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Ch 36: Praxis Middle School Math: Circles

About This Chapter

Look over this chapter to review what you know about circles as you prepare for the geometry questions on the Praxis Middle School Mathematics exam. These lessons will address measurements in circles as well as other aspects about which the exam may ask.

Praxis Middle School Math: Circles - Chapter Summary

These lessons aim to provide you with opportunities to refresh your understanding of the properties of circles about which the Praxis Middle School Mathematics exam may feature questions. This chapter will detail the following properties and skills:

  • Graphing circles
  • Calculating a circle's area and circumference
  • Relationship between pi, circumference, and diameter
  • Tangents to circles
  • Using tangents, chords, and secants to measure angles and lengths
  • Sectors and their arc lengths

If you find you learn better by reading information than by viewing it in video format, please consult each lesson's corresponding full transcription. These transcriptions highlight key terminology that should help you in your studies for the exam. Be sure to take the cumulative exam at the end of the chapter to gauge how well you comprehend the content of all the lessons.

8 Lessons in Chapter 36: Praxis Middle School Math: Circles
Test your knowledge with a 30-question chapter practice test
Graphing Circles: Identifying the Formula, Center and Radius

1. Graphing Circles: Identifying the Formula, Center and Radius

Discover how to graph circles by finding key information like the center and radius. Identify circles by simply looking at the formula, and vice versa.

Circles: Area and Circumference

2. Circles: Area and Circumference

Understanding how to calculate the area and circumference of circles plays a vital role in some of our everyday functions. They serve as the foundation for operating with three-dimensional figures. Learn more about the area and circumference of circles in this lesson.

Diameter and Circumference Related with Pi

3. Diameter and Circumference Related with Pi

After watching this video, you will be able to tell others how the number pi is related to a circle's diameter and circumference. And using your newfound knowledge, you will be able to calculate the circumference or diameter of a circle.

What is Diameter? - Definition & Formula

4. What is Diameter? - Definition & Formula

In this lesson, you can find out how important the diameter is to a circle. Also, you can learn about the formulas that were figured out by the mathematicians of old relating to the diameter and how to use them.

Tangent of a Circle: Definition & Theorems

5. Tangent of a Circle: Definition & Theorems

What happens when a line just barely touches a circle? It's a tangent! In this lesson, we'll learn all about tangents to circles, including a few key theorems. We'll also look at tangent circles.

Measurements of Angles Involving Tangents, Chords & Secants

6. Measurements of Angles Involving Tangents, Chords & Secants

When lines and circles meet, angles are formed. Fortunately, we can determine the measure of these angles, whether they're formed by tangents, secants or chords, just by knowing the measure of the created arcs.

Measurements of Lengths Involving Tangents, Chords and Secants

7. Measurements of Lengths Involving Tangents, Chords and Secants

The lengths of chords, tangents and secants take on unique relationships when they're drawn on circles. In this lesson, we'll define those relationships and see them in action.

Arc Length of a Sector: Definition and Area

8. Arc Length of a Sector: Definition and Area

In this lesson, we'll slice up a circle like it's a pizza and learn how to find out useful information about our slices. We'll find out the area of these sectors, or pie slices. We'll also learn about arc lengths.

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 Praxis Middle School Mathematics (5169): Practice & Study Guide course

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