One method of giving direction, or bearing, involves reference to a north–south line using an acute angle. For example, means west of north and means east of south.
A second-type of bearing that gives directions in degrees from north is covered in Section6.3.
Example7 Distance to a Forest Fire.
A forest ranger at point A sights a fire directly south. A second ranger at point B, 7.5 mi east of the first ranger, sights the same fire at a bearing of . How far from A is the fire?
Solution ...
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