Chapter 8.4, Problem 86E

Using LORAN. LORAN navigational transmitters A. B, C. and D are located at (- 100, 0), (100, 0), (0, - 150), and (0,150), respectively. A navigator Pon a ship somewhere in the second quadrant listens to the pair (A, B) of transmitters and computes the difference of the distances from the ship to A and B as 120 miles. Similarly, by listening to the pair (C, D) of transmitters, navigator P computes the difference of the distances from the ship to C and D as 80 miles. Use a calculator to find the coordinates of the ship.