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Pre-Calculus and Calculus

finding bearings of angles

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effort
Senior Member

USA
34 Posts

Posted - 04/18/2012 : 11:04:25

Please show me how to find the bearing of these angles:
1. 90....my answer is North
2. 315....ny answer is South East

Find the bearing of the following points:
1. (4,7)...my answer is N29

45'

I used tan....so tan^-1(7/4)=60.255
so 90-60.255 = N29

45'E
is this right?

2. (-6,0)....I ondt know how to do this but I think it is 180

3. (0,-10).....I don't know how to do this but I think it is 270

*****if #2 and #3 are right....is it because at those points, it is just the degree of that quadrant?

the_hill1962
Advanced Member

USA
1440 Posts

Posted - 04/18/2012 : 15:27:53

You always take bearings by facing North. The angle is stated as a clockwise direction from the North.
So "90" is East, not North.

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