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April 20, 2014

April 20, 2014

Posted by **Karen** on Monday, December 10, 2012 at 1:17am.

- pre calculus -
**Reiny**, Monday, December 10, 2012 at 9:14ammaking 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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