Ch 39: Geometric Concepts

About This Chapter

This chapter provides an overview of several fundamental concepts in geometry, with professional instructors guiding you through a series of engaging video and text lessons.

Geometric Concepts - Chapter Summary

This chapter is a great way to shore up your foundational understanding of key geometric concepts, with lessons discussing and demonstrating the following topics:

  • Perimeter, area, and surface area
  • Finding the volume of shapes
  • Three-dimensional shapes
  • Calculating the number of faces, edges, and vertices of polyhedrons
  • Using mathematical principles to classify two-dimensional figures

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7 Lessons in Chapter 39: Geometric Concepts
Test your knowledge with a 30-question chapter practice test
What is Perimeter? - Definition & Formula

1. What is Perimeter? - Definition & Formula

In mathematics, the perimeter is the distance around a two-dimensional shape. The formula for finding the perimeter of certain shapes will be discussed in this lesson, and there will be some examples to help you understand how to calculate the perimeter.

What is Area in Math? - Definition & Formula

2. What is Area in Math? - Definition & Formula

Area is the size of a two-dimensional surface. This lesson will define area, give some of the most common formulas, and give examples of those formulas. A quiz at the end of the lesson will allow you to work out some area problems on your own.

What is Surface Area? - Definition & Formulas

3. What is Surface Area? - Definition & Formulas

In this lesson, you use general and specific formulas to learn how to find the surface area of three-dimensional shapes, such as cubes, prisms, spheres, cones and cylinders.

Volumes of Shapes: Definition & Examples

4. Volumes of Shapes: Definition & Examples

Volume is defined as the 3-dimensional space enclosed by a boundary. In this lesson we will define volume, give some of the most common formulas and then work some example problems to become familiar with the formulas. There will be a quiz at the end of the lesson for practice.

Overview of Three-dimensional Shapes in Geometry

5. Overview of Three-dimensional Shapes in Geometry

We are surrounded by three-dimensional shapes. Watch this video lesson to see what some three-dimensional shapes look like, such as a cube, a sphere, a brick, and a cylinder.

Counting Faces, Edges & Vertices of Polyhedrons

6. Counting Faces, Edges & Vertices of Polyhedrons

After watching this video lesson, you will be able to count how many faces, edges, and vertices a polyhedron has. Also, you will learn how the number of faces, edges, and vertices are related.

Classifying Two-Dimensional Figures

7. Classifying Two-Dimensional Figures

In this lesson, we look at the classification of two-dimensional figures based on their properties. From that, we'll have a better understanding of the relationship between various figures.

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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