How is the length of the side of a square related to its area and perimeter? The diagram below shows the first four squares stacked on top of each other with their upper left-hand corners lined up. The length of one side of the smallest square is 1 foot. Complete this chart calculating area and perimeter for each square. Side Length (in feet) Expression Showing the Area Area (in square feet) Expression Showing the Perimeter Perimeter (in feet) 1 1 x1 1 4 1 x 4 2 3 4 5​