(i) The bearing of B from A and angle x are supplementary, then:
(ii)
From the above diagram, the bearing angle of A from B is:
(iii)
From the above diagram, the bearing angle of C from B is:
(iv)
Applying the law of cosines with the sides AB = 145m and CB = 240 m, and the angle ABC = 68°, the distance AC is:
