# Definition of Irregular Polygon

An irregular polygon is a polygon (plane figure with straight sides) in which the sides have different lengths, and the angles have different sizes.

Some of the sides or angles may be the same, but there has to be at least one that is different from the others.

The picture shows some irregular polygons: a triangle, a quadrilateral, a pentagon and a hexagon.

### Description

The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.

### Audience

Year 1 to Year 12 students

### Learning Objectives

Learn common math terms starting with letter I

Author: Subject Coach
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