Description: Given the vertices of a rectangle, can you find the lengths of the sides? Given these coordinates, what is the length of side AD of this rectangle? It's my y-axis, and let me draw my x-axis. My x-axis, and actually I wanna really focus in on the points A and D, because we just need to find the length of the side from point A to point D. So point A, let me do this in another color.*Teacher Advisor is 100% free.