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 its length x its width.

If you know the area and one side, you can divide to find the other side's length

**Example**

A rectangular room has an area of 12 m^{2}

If its length is 4 m, what is its width?

**Answer**

We divide 12 ÷ 4 = 3

So width = **3** m