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Ch 34: 8th Grade Math: Circular Arcs & Measurement in Geometry

About This Chapter

Have your eighth-grade student check out the short videos found in this chapter for help understanding how to measure a circular arc. At the end of the chapter, your child can take a test that will show how well they retained the provided information.

8th Grade Math: Circular Arcs & Measurement in Geometry - Chapter Summary

Your student will be able to cement what they have been learning in school using the under-10-minute videos found in this chapter. The videos cover topics surrounding circular arcs and measurement, like central and inscribed angles. Inscribed and circumscribed triangles are also covered, as well as arc length and regular polygons. Don't hesitate to have your child use end-of-lesson quizzes to further strengthen their comprehension.

Chapter Lessons and Objectives

Lesson Objective
Circular Arcs and Circles: Definitions and Examples Students will learn the definition and description of a circle, and related terms like semicircle and locus of points.
Central and Inscribed Angles: Definitions and Examples Instructors provide definitions for central and inscribed angles.
Measure of an Arc: Process & Practice This lesson teaches how to measure an arc.
How to Find the Measure of an Inscribed Angle Students are provided with opportunities to measure an inscribed angle.
Tangent of a Circle: Definition & Theorems At the end of this lesson, students should understand the theories behind tangents and be able to compose a tangent of a circle.
Measurements of Angles Involving Tangents, Chords & Secants This lesson shows how to measure angles.
Measurements of Lengths Involving Tangents, Chords and Secants Instructors teach students how to measure lengths associated with tangents.
Inscribed and Circumscribed Figures: Definition & Construction Students apply newfound knowledge of inscribed and circumscribed figures to construct them.
Constructing Inscribed and Circumscribed Triangles With this lesson, students learn how to build inscribed and circumscribed triangles.
Regular Polygons: Definition & Parts Instructors explain what a regular polygon is and how to identify one.
Arc Length of a Sector: Definition and Area Students study what a circular sector is and how to find its area and arc length.

9 Lessons in Chapter 34: 8th Grade Math: Circular Arcs & Measurement in Geometry
Test your knowledge with a 30-question chapter practice test
Circular Arcs and Circles: Definitions and Examples

1. Circular Arcs and Circles: Definitions and Examples

What is a circle? In this lesson, find out all about the circle and its many parts, including circular arcs and semicircles. Also, discover how a locus works in creating a circle, parallel lines and more.

Measure of an Arc: Process & Practice

2. 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.

How to Find the Measure of an Inscribed Angle

3. 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.

Tangent of a Circle: Definition & Theorems

4. 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

5. 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

6. 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.

Inscribed and Circumscribed Figures: Definition & Construction

7. 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.

Regular Polygons: Definition & Parts

8. Regular Polygons: Definition & Parts

What makes a polygon a polygon? And what shapes are considered polygons? In this lesson, find out the answers to these questions and more as we learn all about polygons and their parts.

Arc Length of a Sector: Definition and Area

9. 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.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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Other Chapters

Other chapters within the 8th Grade Math: Practice & Review course

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