13. The coordinates for a rhombus are given as (2a, 0), (0, 2b), (-2, 0), and (0,-2b). Write a plan to prove that (3 points) the midpoints of the sides of a rhombus determine a rectangle using coordinate geometry. Be sure to
include the formulas.
(0,2b)
(-a, b)
(a, b)
(-2a, 0)
(2a, 0)
(-a, -b)
(a, -b)
(0.-26)