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Count the Sides of 2D Shapes

In this worksheet, students will need to work out how many sides different 2D shapes have

'Count the Sides of 2D Shapes' worksheet

Key stage:  KS 1

Year:  Year 2 Maths worksheets

Curriculum topic:   Geometry: Properties of Shapes

Curriculum subtopic:   Identify 2D with 3D Shapes

Difficulty level:  

Worksheet Overview

2D (two dimensional) shapes are flat and can only be drawn on paper.


For the 2D shapes, we should know how many sides they have. A side is a line that joins up two corners of the shape. For example, a triangle always has three sides.


boy thinking


Let's have a look at how many sides different 2D shapes have. 


One side:

Here, we have a circle and an oval. They just have one curved side.


 circle  oval 


Three sides: 

For three-sided shapes we have triangles.


 triangle  triangle  


Four sides:

There are lots of four-sided shapes. We have a square, where all the sides are the same length. 




There is a rectangle. In a rectangle, the opposite sides are the same length and the sides touching are different lengths: 




We also have a kite and a rhombus that have four sides.

We can recognise a kite as it looks like the kite that we fly! 




A rhombus looks like a diamond:




Five sides:

A shape with five sides is called a pentagon.




Six sides:

A shape with six sides is called a hexagon.




Eight sides:

A shape with eight sides is called an octagon.




We are going to answer questions on the number of sides on these 2D shapes. 


Shall we get started? 

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