Final answer:
N90° east typically means heading directly east. In navigation, this is slightly north from due east, based on compass bearings. Detailed calculations to find actual positions after a series of movements would involve vector subtraction or trigonometry.
Step-by-step explanation:
If you were at the POB (Point of Beginning) and you are headed N90° east, this typically means that you are heading directly east. The notation N90° east is commonly used in navigation and surveying to indicate a direction 90 degrees to the east from True North.
In this context, since there's a mention of north of east in the associated details, if an object travels 90.1° north of east, it means the object is moving nearly directly east but slightly to the north (90° is due east, so 90.1° is just barely north of that).
The direction of travel can also be visualized using vector addition. For example, if a woman is instructed to sail first in a direction 66.0° north of east and then travels 112° north of east for the second leg of her trip but makes a mistake by traveling in the opposite direction, she will end up significantly off course from her intended destination, the dock.
The instructions use a coordinate system based on compass bearings, and calculating her final position would require subtraction of vectors graphically or using trigonometric methods.