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I have tried attaching an image of the triangle I am working with but since I am a new user this site will not let me post images (kind of defeats the purpose, but anyways).

I have the following triangle:

Point A = (x:40, y:100) Point B = (x:50, y:50) Point C = ?? d = 20 degrees (which is the angle between vectors BA and CA.

I am tring to find out the coordinates of Point C. I have tried using the law of cosines and scoured the net looking for a close example that I can learn from and figure out why I can't get the correct formula for this.

Can any one please lend a hand in figuring out this formula.

Thank you!

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    An informal sketch should convince you that there are many $C$ that work. Did the problem say *anything* else about $C$? Typical in this sort of game, for example, would be to say that $C$ is on the $x$-axis.2011-07-25
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    Post a link to the image (upload it to [imgur](http://imgur.com/) if necessary), and someone will edit it into your question.2011-07-25

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