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Understand Regular and Irregular Polygons

In this worksheet, students will be asked to build upon their existing knowledge of polygons to solve a variety of problem-based questions.

'Understand Regular and Irregular Polygons ' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Geometry: Properties of Shapes

Curriculum subtopic:   Understand Polygons

Popular topics:   Geometry worksheets

Difficulty level:  

Worksheet Overview

A polygon is a flat, 2D shape. 


It has straight sides and is fully closed, meaning that all the sides are straight and joined up.

Polygons can have any number of sides.


Regular polygons:

A regular polygon has all sides of the same length and all angles the same.


For example, an equilateral triangle is a regular polygon - all of its sides and angles are the same.


Equilateral triangle


Irregular polygons:

An irregular polygon is a shape with sides and/or angles at differing lengths and sizes.


A scalene triangle has differing angles and sides.


Scalene triangle


Let's look at some more polygons in the questions.

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