1. Calculating the Perimeter & Area
of a Rectangle
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2. The perimeter is the distance around the outside
of a shape.

3. The perimeter is the distance around the outside
of a shape.
To work out the perimeter of a rectangle, you add up the lengths and the widths.
For example:

4. The perimeter is the distance around the outside
of a shape.
To work out the perimeter of a rectangle, you add up the lengths and the widths.
For example:
Length 15cm
Width
4cm
Width
4cm
Length 15cm

5. The perimeter is the distance around the outside
of a shape.
To work out the perimeter of a rectangle, you add up the lengths and the widths.
For example:
Length 15cm
Width
4cm
Width
4cm
Length 15cm
Perimeter = 15cm + 4cm + 15cm + 4cm
= 38cm

6. Length 15cm
Width
4cm
Width
4cm
Length 15cm
A quicker way to find the perimeter of a rectangle is to add up one of
the lengths with one of the widths and then double that answer

7. Length 15cm
Width
4cm
Width
4cm
Length 15cm
A quicker way to find the perimeter of a rectangle is to add up one of
the lengths with one of the widths and then double that answer
For example, (15cm + 4cm) x 2 = 38cm

8. Area is the amount of space that is covered by a 2D shape. It is measured in square
units. For example a square cm (written cm²):
1cm
1cm
1cm
1cm

9. Area is the amount of space that is covered by a 2D shape. It is measured in square
units. For example a square cm (written cm²):
1cm
1cm
1cm
1cm
Length 15cm
Width
4cm
Width
4cm
Length 15cm

10. Area is the amount of space that is covered by a 2D shape. It is measured in square
units. For example a square cm (written cm²):
1cm
1cm
1cm
1cm
Length 15cm
Width
4cm
Width
4cm
Length 15cm
You can work out the area by adding up the number of square cm. In
this example there are 60cm²

11. Area is the amount of space that is covered by a 2D shape. It is measured in square
units. For example a square cm (written cm²):
1cm
1cm
1cm
1cm
Length 15cm
Width
4cm
Width
4cm
Length 15cm
You can work out the area by adding up the number of square cm. In
this example there are 60cm²
Or you can multiply the length by width:
15 x 4 = 60cm²

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