The perimeter is the total distance around a shape, starting and finishing at the same point.

Example

Answer

Here the perimeter is 1 + 2 + 1 + 1 + 2 + 3 = 10 cm

Area

Remember that the area of rectangle is it's length x it's width.

If we know the area and one side, we can divide to find the length of the other side.

Example

A rectangular room has an area of 12 m²

If it's length is 4 m, what is it's width?

Answer

We divide 12 ÷ 4 = 3

So width = 3 m