Three towns p, q and r are such that the distance between p and r is 90km. If the bearing of q from p is 075 and the bearing of r from p is 310, find the

Question

(a)distance between q and r
(b)bearing of r from q

Answer 1

You know one angle, angle P, and one side, q (PR). I don't see that it can be solved. Something is missing, I suspect the distance pq (Side r).

Answer 2

from a ship p, the bearing of a harbour Q is 070 degrees.