A bearing is an angle, measured clockwise from the
north direction. Below, the bearing of B from A is 025 degrees (note 3 figures
are always given). The bearing of A from B is 205 degrees.
Example
A, B and C are three ships.
The bearing of A from B is 045º. The bearing of C from A is 135º. If AB= 8km and
AC= 6km, what is the bearing of B from C?
tanC = 8/6, so C = 53.13º y
= 180º  135º = 45º (interior angles) x = 360º 
53.13º  45º (angles round a point) = 262º
(to the nearest whole number)
Copyright © Matthew Pinkney 2003
