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Ch 10: Basic Geometry: Perimeter, Circumference & Area

About This Chapter

The Basic Geometry: Perimeter, Circumference & Area chapter of this Basic Geometry: Help & Review course is the simplest way to master perimeter, circumference and area. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure you learn the essentials of perimeter, circumference and area.

Who's It For?

Anyone who needs help learning or mastering perimeter, circumference and area material will benefit from the lessons in this chapter. There is no faster or easier way to learn about perimeter, circumference and area. Among those who would benefit are:

  • Students who have fallen behind in understanding perimeter, circumference and area
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning math (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about perimeter, circumference and area
  • Students who struggle to understand their teachers
  • Students who attend schools without extra math learning resources

How It Works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the Basic Geometry: Perimeter, Circumference and Area chapter exam.

Why It Works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the Basic Geometry: Perimeter, Circumference and Area chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any perimeter, circumference and area question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students Will Review:

This chapter helps students review the concepts in a perimeter, circumference and area unit of a standard basic geometry course. Topics covered include:

  • The Pythagorean Theorem
  • Calculating the perimeter of polygons
  • Learning formulas to measure the area of various shapes
  • Calculating the circumference of a circle

8 Lessons in Chapter 10: Basic Geometry: Perimeter, Circumference & Area
Finding the Perimeter of Polygons

1. Finding the Perimeter of Polygons

In this video lesson, you will learn the process you need to take to find the perimeter of polygons. You will also learn that there is a shortcut if your polygon is a regular polygon.

Area of Triangles and Rectangles

2. Area of Triangles and Rectangles

How do you find out the area of rectangles and triangles? Learn how in this lesson! We'll look at the formulas, then practice solving problems for each shape.

Measuring the Area of a Parallelogram: Formula & Examples

3. Measuring the Area of a Parallelogram: Formula & Examples

Watch this video lesson to learn the simple formula to find the area of a parallelogram. Learn what measurements you need, how to label your parallelogram, and how to use the formula.

Measuring the Area of a Rhombus: Formula & Examples

4. Measuring the Area of a Rhombus: Formula & Examples

Did you know that there are three ways to find the area of a rhombus? Watch this video lesson to learn all three of them. See what information you need for each method as well as the steps required for each.

Measuring the Area of a Trapezoid

5. Measuring the Area of a Trapezoid

In this video lesson, you will watch and learn how you can find the area of trapezoid. Learn what measurements you need to have on hand as well as the formula that you need to use.

Circles: Area and Circumference

6. 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.

What is an Irregular Polygon? - Definition & Shapes

7. What is an Irregular Polygon? - Definition & Shapes

Polygons show up often in the world around us. This lesson will define regular and irregular polygons and teach us to distinguish between the two. We will become familiar with different n-sided polygons and their shapes.

How to Find the Area of Irregular Polygons

8. How to Find the Area of Irregular Polygons

In this lesson we will learn the definition of an irregular polygon and how to find the area of an irregular polygon. You will understand how to partition irregular polygons into plane figures and use the formula for each plane figure to find the area.

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