This is a good place to mention that the physical move on the ground
need not be made in cardinal directions. It can be made by moving
along the hypotenuse. However, it is better to make the move on
cardinal and check by measuring the hypotenuse. To check the actual
move made on the ground, compute the bearing and distance of the
hypotenuse of the right triangle.
Here the bearing tangent . . .
. . . equals opposite divided by adjacent, O over A.