3. Reason quantitatively. A figure has vertices P(-3, 1), Q(9, 1), R(3, —7), and S(-9, -7).
a. What is the most specific name that can be given to PQRS? Explain how you know.
b. Find PQ, QR, RS, and SP.
c. What is the perimeter of quadrilateral PQRS?
d. What is the area of quadrilateral PQRS?