A compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions (or points). Usually, a diagram called a compass rose shows the directions north,
geometry - Convert a direction into an angle on our compass - Mathematics Stack Exchange
Wind Direction
10 Best Printable Compass Degrees - printablee.com
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Traditional mariners' compass points
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Aeronautics - The Compass - Level 1
Wind Direction and Degrees
Maps and Navigation
Why is wind described by the direction it comes from instead of the direction it is blowing? - Quora
Trigonometry/Compass Bearings - Wikibooks, open books for an open world