Do the points (0,0) (a,0) (a,a) and (0,a) represents a special quadrilateral? If so, which one? If not, explain why not and what should be changed. Be sure to sketch the quadrilateral. If it does represent a special quadrilateral, use the formulas from this module to prove one of the properties from section 6.01a (distance, slope, Pythagorean theorem). Show and explain your work including a sketch.