Welcome to Math Salamanders Printable Regular Shapes page.
Here you will find a wide range of free printable information sheets about regular and
irregular shapes, as well as some worksheets involving regular and irregular shapes.
All regular 2d shapes, or regular polygons, have special properties listed below.
Regular Shapes Properties
Here is a list of regular polygons from 3 to 10 sides.
For each polygon, a regular and an irregular example have been shown.
Any regular polygon will be mathematically similar to the example shown (having the same angles).
There are an infinite number of examples of different irregular polygons that could be shown, and only one example is given.
Equilateral Triangle ![]() Angle: 60° Interior angles add up to 180° |
Irregular Triangle ![]() |
Square ![]() Angle: 90° Interior angles add up to 360° |
Irregular Quadrilateral ![]() |
Pentagon ![]() Angle: 108° Interior angles add up to 540° |
Irregular Pentagon
|
Hexagon ![]() Angle: 120° Interior angles add up to 720° |
Irregular Hexagon ![]() |
Heptagon ![]() Angle: 128.6° Interior angles add up to 900° |
Irregular Heptagon ![]() |
Octagon ![]() Angle: 135° Interior angles add up to 1080° |
Irregular Octagon ![]() |
Nonagon ![]() Angle: 140° Interior angles add up to 1260° |
Irregular Nonagon ![]() |
Decagon ![]() Angle: 144° Interior angles add up to 1440° |
Irregular Decagon ![]() |
The formulae for the interior angles of a polygon are as follows:
Total of interior angles = 180 x (number of sides - 2)
Angle = total of interior angles / number of sides
Take a look at some more of our worksheets similar to these.
We have created a calculator for finding the area of a regular polygon up to 12 sides.
There are also worked examples and worksheets to help you learn to find the area of different regular polygons.
On this webpage there are different printable polygon sheets.
Each polygon is available as a large image, either with or without a background.
If you are looking for large regular shape images to print, then this is the page for you!
Here you will find a List of different Geometric Shapes.
Included with each shape is a small picture and a description of the properties the shape has and how it relates to other shapes.
Included in this page are the following shapes:
All the printable Geometry worksheets in this section support the Elementary Math Benchmarks.
How to Print or Save these sheets
Need help with printing or saving?
Follow these 3 easy steps to get your worksheets printed out perfectly!
How to Print or Save these sheets
Need help with printing or saving?
Follow these 3 easy steps to get your worksheets printed out perfectly!
The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources.
We welcome any comments about our site or worksheets on the Facebook comments box at the bottom of every page.
Looking for some fun printable math games?
We have some great games for you to play in our Math Games e-books!
Do you know how old you are...in weeks? days? hours?
Are you more than a million minutes old?
Find out how old you are to the nearest second!
We have updated and improved our fraction calculators to show you how to solve your fraction problems step-by-step!
Take a look and try them out!
Have a look at some of our most popular pages to see different Math activities and ideas you could use with your child
If you are a regular user of our site and appreciate what we do, please consider making a small donation to help us with our costs.
Get a free sample copy of our Math Salamanders Dice Games book with each donation!
Looking for a fun and motivating way to learn and practice math skills?
Why not try one of our free printable math games with your students!
New! Comments
Have your say about the Math resources on this page! Leave me a comment in the box below.