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CTK Exchange
Liliya
Member since Oct-4-01
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May-21-02, 06:58 PM (EST) |
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"Bearing problem"
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Hi,
Our math teacher doesn't explain everything to us, and today he wasn't here and on the homework there's one problem that I have no idea how to do.Problem:
A plane flies 675 miles from A to B with a bearing of N75(degrees)E. Then it flies 540 miles from B to C with a bearing of N32E. Find the straight-line distance and bearing from C to A. Could someone please tell me how to start doing the problem(other than drawing a picture), and then I'm pretty sure I'll get the rest.
Thanks.
-Liliya |
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alexb
Charter Member
2308 posts |
May-21-02, 07:06 PM (EST) |
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1. "RE: Bearing problem"
In response to message #0
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>Could someone please tell me how to start doing the
>problem(other than drawing a picture), What's wrong with drawing a picture? Do you mean to say that you know how to draw it? I think all it takes is to draw the right picture. You have a triangle ABC with A on a horizontal line. Bearing N75E must mean one of the two (you should know which; I do not have to)
- AB forms an angle of 75° with the horizontal line inclined East from A
- AB forms an angle of 75° with the vertical line through A inclined East
The rest is a little trigonometry.
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