3 P(3; 5), Q(-1; -5) and R(4; 1) are the vertices of APQR. 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Calculate the length of PQ (leave your answer in simplest surd form). Find the coordinates of M, the midpoint of PQ. Find the equation of the perpendicular bisector of PQ. If ME || QR with E on PR, use analytical methods to calculate the coordinates of E. Find the equation of the median of APQR drawn from Q. Calculate the size of PQR. Determine the coordinates of S so that PQRS is a parallelogram.​