Look at the red shape below, drawn on a centimetre square grid:

Its perimeter is the total of the distances around all four sides.

Starting at the base and going anticlockwise around the shape, we work out that:

the **perimeter** is 2 + 3 + 2 + 3 = **10 cm**.

It is made of 6 centimetre squares, so its **area **is **6 cm ^{2}**.

Now look at the blue shape below, drawn on a centimetre square grid:

Its perimeter is the total of the distances around all its sides.

Starting at the base and going anticlockwise around the shape, we work out that:

the **perimeter** is 1 + 1 + 1 + 2 + 1 + 1 + 1 + 2 = **10 cm**.

This is the **same perimeter **as the red shape above.

But it is only made of 4 centimetre squares, so its **area **is only **4 cm ^{2}**.

Shapes with the **same perimeter **can have **different areas**.