Calculating area

Home learning focus

Using a formula, learn how to work out the area of a shape.

This includes:

  • two videos
  • one interactive activity
  • one quiz
  • one worksheet

Learn

How to work out an area

In this video from KS2 Maths a builder explains how to work out the area of a shape.

Example 1

Let's work out the area of this rectangle.

The height of the rectangle is 6cm and the width is 4cm.

Using height x width = area

6cm x 4cm = 24cm²

The total area of the rectangle is 24cm² .

Example 2

What is the area of this shape?

To work out the area of this shape may look a little more complicated but it's not.

You can split the shape into two different rectangles, work out the area for each rectangle and then add them together to find the total area of the shape.

area = height x width

For the orange rectangle: 4cm x 3cm = 12cm²

For the yellow rectangle: 2cm x 3cm = 6cm²

For the total area of the shape: 12cm² + 6cm² = 18cm².

The answer is 18cm².

To work out the area of a square or rectangle:

height x width = area

If the height and width are in cm, the area is shown in cm². If the height and width are in m, the area is shown in m².

Practise

Activity 1

Test your knowledge of calculating area with this quiz.

Activity 2

Calculating area interactive

Can you work out the number of tiles in each shape for this KS2 Maths interactive activity?

Activity 3

Area and perimeter video and worksheet

Explore the concepts of area and perimeter with maths expert Bobby Seagull and famous faces from football in this video from Live Lessons.

Then have a go at completing the challenge set using this activity sheet. Don't worry if you can't print the sheet off, you can use a piece of paper and pen.

There's more to learn

More Maths Lessons
7 - 11 Maths
This Term's Topics - Maths
Primary games