Pentagon Shape Facts: Lesson for Kids

An error occurred trying to load this video.

Try refreshing the page, or contact customer support.

Coming up next: Vertices: Lesson for Kids

You're on a roll. Keep up the good work!

Take Quiz Watch Next Lesson
 Replay
Your next lesson will play in 10 seconds
  • 0:01 What Is a Pentagon?
  • 0:50 Types of Pentagons
  • 1:38 Real-World Examples
  • 2:15 Lesson Summary
Save Save Save

Want to watch this again later?

Log in or sign up to add this lesson to a Custom Course.

Log in or Sign up

Timeline
Autoplay
Autoplay
Speed Speed

Recommended Lessons and Courses for You

Lesson Transcript
Instructor: Jennifer Lowery

Jennifer has taught elementary levels K-3 and has master's degrees in elementary education and curriculum/instruction and educational leadership.

Find out all kinds of interesting facts about the five-sided shape called the pentagon! Learn about this shape, the different types of pentagons, examples of pentagons and why it's called a pentagon.

What Is a Pentagon?

We learn about all different types of shapes in geometry. One kind of flat shape is the polygon, also known as a plane figure, and it's made of lines (sides) and corners where the lines connect. Plane figures are often named based on the number of sides and corners they have. A pentagon is a plane figure that has five sides and five corners.

Figure A: Pentagons have five sides and five corners.
Equilateral plane figure

The word pentagon contains Greek roots. When we break down the word into parts, penta means five and gon roughly means angles. An angle is where two lines come together and connect, so you can think of an angle as a corner of a shape. As you can see, the shape is named 'pentagon' because it has five angles, or corners!

Types of Pentagons

This pentagon is a regular pentagon. We call it 'regular' because the sides are all equal in length. When the sides are equal lengths, we know that the angles are equal as well. That's because when sides are equal distances from each other, their placement naturally creates equal-sized angles or corners. You can draw lines through a pentagon in five different places and divide it equally into two sections. These lines are called lines of symmetry.

But not all pentagons are regular. There are pentagons that have sides that are not all equal, and so they also have angles that are not equal. These are called irregular pentagons, since some sides and angles are bigger or smaller than the others. They do not have the lines of symmetry that a regular pentagon has.

To unlock this lesson you must be a Study.com Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use Study.com

Become a Study.com member and start learning now.
Become a Member  Back
What teachers are saying about Study.com
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create an account
Support