draw a line from a to b. then from points a and b draw a line up north. if it it tells you to find the bearing from a to b you measure the last point so you measure b. bearings must be 3 digits as well so if you measure 57 it should be 057.
in this case if b to a is 100, a to b must be 280 since angles around a point total 360. you must measure from north !
