To find the length of the rectangle, we subtract the x-coordinates of points A and D:
Length = Distance between A and D = |1 - 1| = 0
To find the width of the rectangle, we subtract the y-coordinates of points A and B:
Width = Distance between A and B = |-3 - (-3)| = 0
To find the perimeter, we add up all the sides:
Perimeter = 2*Length + 2*Width
Perimeter = 2*0 + 2*0 = 0
Therefore, the perimeter of the rectangle ABCD is 0 miles.