Sides and vertices on 2D shapes
Learn about the properties of 2D shapes.
This lesson includes:
- a catch-up quiz
- two videos
- a learning summary
- an activity
To get started, let's see how well you know this topic already. Take the catch-up quiz below to find out.
Properties of 2D shapes
Here are three 2D shapes. What properties do they have?
2D shapes have sides and vertices.
A vertex is a point where two or more lines meet. The plural of vertex is vertices.
Let's have a look at the properties of these shapes.
The triangle has 3 sides and 3 vertices.
The square has 4 sides and 4 vertices.
The hexagon has 6 sides and 6 vertices.
Before we move on to some activities, watch this fun song that will help you remember all about 2D shapes.
You can count the number of sides or the number of vertices on a 2D shape – they are both the same!
2D shape hunt
Let's see what 2D shapes we can find around the house.
You will need a pencil and a piece of paper.
Look around the house for 2D shapes. Draw them on your piece of paper.
Can you draw and label:
- the sides
- the vertices
Play Guardians: Defenders of Mathematica to learn more about this topic and test your skills.
There's more to learn
Have a look at these other resources.