Ch 10: Glencoe Geometry Chapter 10: Circles

About This Chapter

The Circles chapter of this Glencoe Geometry Textbook Companion Course helps students learn essential geometry lessons of circles. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Circles textbook chapter.

How it works:

  • Identify the lessons in Glencoe Geometry's Circles chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the circle topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, re-watch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Circle properties
  • Circle area and circumference
  • Arc length of a sector
  • Inscribed and circumscribed figures
  • Inscribed and opposite angles
  • Chord theorems
  • Circle tangents
  • Chords and secants
  • Equation for a circle

Glencoe Geometry is a registered trademark of McGraw-Hill, which is not affiliated with Study.com.

12 Lessons in Chapter 10: Glencoe Geometry Chapter 10: Circles
Test your knowledge with a 30-question chapter practice test
Circles: Area and Circumference

1. 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.

Properties of Shapes: Circles

2. Properties of Shapes: Circles

Circles are fundamental to everything we do. But, did you know they're much more than just round shapes? In this lesson, we'll look at the various parts of circles and how they all relate.

Measure of an Arc: Process & Practice

3. Measure of an Arc: Process & Practice

What is the measure of an arc? And what is the difference between a minor arc and a major arc? Find out all that and practice finding the measure of an arc in this lesson.

Arc Length of a Sector: Definition and Area

4. 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.

Inscribed and Circumscribed Figures: Definition & Construction

5. Inscribed and Circumscribed Figures: Definition & Construction

A square and a circle may be different shapes, but they still can have a unique relationship. In this lesson, we'll learn about inscribed and circumscribed figures.

Chord Theorems of Circles in Geometry

6. Chord Theorems of Circles in Geometry

Watch this video lesson to learn how a radius will always bisect a perpendicular chord and how equidistant chords will always be congruent to each other. Also, see an example of how you can use these two theorems.

How to Find the Measure of an Inscribed Angle

7. How to Find the Measure of an Inscribed Angle

Finding the measure of an inscribed angle requires knowing a little information. In this lesson, we'll find the measure of an inscribed angle when we know the measure of the central angle or one or more of the arcs formed by the angle.

Quadrilaterals Inscribed in a Circle: Opposite Angles Theorem

8. Quadrilaterals Inscribed in a Circle: Opposite Angles Theorem

Cyclic quadrilaterals can be inscribed in a circle, and their angles follow a special rule that can help you solve problems more quickly. Learn more about the properties of this particular type of quadrilateral.

Tangent of a Circle: Definition & Theorems

9. 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

10. 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

11. 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.

Graphing Circles: Identifying the Formula, Center and Radius

12. 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.

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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