Circular Arcs, Circles & Angles: Homework Help - Videos & Lessons

About This Chapter

The Circular Arcs, Circles and Angles chapter of this Trigonometry Homework Help course helps students complete their homework in circular arcs, circles and angles and earn better grades. This homework help resource uses simple and fun videos that are about five minutes long.

How it works:

Identify which circular arcs, circles and angles are covered on your homework.
Find videos on those topics within this chapter.
Watch fun videos, pausing and reviewing as needed.
Complete sample problems and get instant feedback.
Finish your homework on circular arcs, circles and angles with ease!

Topics from your homework you'll be able to complete:

Proving that all circles are similar
Deriving the equation of a circle using the Pythagorean Theorem
Proving properties of angles for a quadrilateral
Constructing the inscribed circles of a triangle
Identifying the relationships between inscribed angles, radii and chords
Studying the area and circumference of circles
Finding the measure of an inscribed angle

9 Lessons in Chapter 30: Circular Arcs, Circles & Angles: Homework Help

Chapter Practice Test

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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.

2. 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.

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.

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.

5. 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.

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.

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.

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.

9. Angles Inscribed in a Semicircle

This lesson will demonstrate how to solve problems with angles inscribed in semi-circles. Inscribed angles and semi-circles are defined and examples are provided.

Chapter Practice 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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Summary:

Visit the High School Trigonometry: Homework Help Resource page to learn more.

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