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 m^{2}

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

**Answer**

We divide 12 ÷ 4 = 3

So width = **3** m

Want to understand this further and learn how this links to other topics in maths?

Why not watch this video?