Practise Counting the Number of Sides of 2D Shapes

In this activity, we will count the number of sides on each shape and answer the questions.

 

First of all, let's recap on shapes. 

 

A one-sided shape is a circle or an oval:

 

    

 

Three-sided shapes are triangles:

 

   

 

Four-sided shapes can be a square, rectangle, kite, or rhombus:

 

       

 

 

Five-sided shapes are called pentagons. 

The red pentagon is a regular pentagon, which has sides of all the same length.

The green pentagon is an irregular pentagon as the sides are not all equal in length. 

 

   

 

 

A six-sided shape is called a hexagon. 

 

  

 

Finally, an eight-sided shape is called an octagon. 

 

  

 

Example

 

Answer

There is 1 shape above with three sides. This is the last shape - the orange triangle.

There are 0 shapes above with four sides.

There are 2 shapes above with more than five sides. They are the red and the light blue shapes. They both have six sides, so they are hexagons.

 

Let's have a go at counting sides in the following questions - write your answers as a number.