Area And Perimeter: The importance of finding your Answers!

First of all before finding the area of a shape you must find the perimeter.
The perimeter is the total lenght of the lines around the outside of the shape.
 For example To find the perimetr you must find the mesurments then add them together.

To find the Area you must find the perimeter first so for example the perimeter of a fence is 20m to find the biggest space you can get so 5+5+5+5 = 20m thats the perimeter so 5x5= 25 and thats the area