Posted by Karen on Monday, December 10, 2012 at 1:17am.
making a sketch , I got
tanØ = 145/85 = 1.7058...
Ø = 59.62°
Using the standard compass notation (north is zero, go clockwise)
direction is 180 - 59.62° = 120.38°
or sometimes you see it as N 59.62° W
OR
plane is at (-85,145) on a grid , which is in quadrant II
tan Ø = 145/-85
Ø = -59.62° which would be the angle in quadrant IV
or 180 - 59.62 = 120.38 --> our angle
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