(8 pts) Quadrilateral ABCD is given below, where the diagonals bisect each other at point M in other words, it is given that M is the midpoint of each diagonal). Prove that ABCD is a parallelogram. A B M D C (6 pts) You should have used triangle congruences in #9. Now, redo that problem, but finish it off completely differently, by using something else from your CPCFC. (Hint: in one of the above two problems, your triangle congruences will yield angle information in the other, it will yield segment information. After that, apply one of Our new theorems from the notes.) (8 pts) Prove Corollary 2 of AIA from the notes.