# How to Teach Classifying Polygons

Below you will find all of your free materials to help you teach Classifying Polygons. We are giving you these in both editable and PDF formats!

## Classifying Polygons Video Lessons

(Open Your Lesson with Something Fun Like This!)

## What is a Polygon?

A Polygon is a closed figure made of line segments. Polygons have at least three angles and at least three line segments. A polygon is named by the number of sides it has.

## Convex Polygon or Convex Polygon

A Polygon is Convex if no line that contains a side of the polygon contains a point in the interior of the polygon. Every interior angle in a convex polygon is less than 180°.

A polygon that is not convex is called non convex or Concave.

### Sample Problem 1:

Tell whether the figure is a polygon and whether it is convex or concave.

### Sample Problem 2:

Draw a figure that fits the description.

## Commonly Used Polygons

In an Equilateral Polygon, all sides are congruent.

In an Equiangular Polygon, all angles in the interior of the polygon are congruent.

A Regular Polygon is a convex polygon that is both equilateral and equiangular.

Irregular Polygon is one that does not have all sides equal and all angles equal.

### Sample Problem 3:

Classify the polygon by the number of sides. Tell whether the polygon is equilateral, equiangular, or regular.

### Sample Problem 4:

Draw a figure that fits the description.

### Sample Problem 5:

Each figure is a regular polygon. Expressions are given for two side lengths. Find the value of .

## Classifying Polygons Worksheet – Word Docs & PowerPoints

1-6 Homework Assignment

1-6 Bell Work

1-6 Exit Quiz

1-6 Guide Notes Student Edition

1-6 Guide Notes Teacher Edition

1-6 Lesson Plan

1-6 Online Activities

1-6 Power Point Presentation

## Classifying Polygons Worksheet PDFs

1-6 Assignment

1-6 Exit Quiz

1-6 Guide Notes SE

1-6 Guide Notes TE

1-6 Lesson Plan

1-6 Online Activities

1-6 Slide Show