Question

Will give medals!
In quadrilateral PQRS, the coordinates are P(0, 0), Q(a + c, 0), R(2a + c, b), and S(a, b). How can you use coordinate geometry to show that the diagonals are perpendicular?

A. Find the slopes of PR and QS, and show that their product is -1.
B. Apply the Distance Formula to show that opposite sides PQ and RS are congurent.
C. Find the slopes of PQ and RS, and show that their product is 1.
D. Apply the Distance Formula to show that opposite sides PS and QR are congruent.