Monday, November 30, 2009

Alicia's Comments

okay im going to comment one of my own questions.

I have trouble with determining when to use the law of sines and law of cosines. If you have this same problem, maybe this explanation will help.

Basically, only use the law of sines when you have a non-right triangle that has a pair. If it's a right triangle, then you would use SOHCAHTOA. You also use law of sines to find the other angles when doing law of cosines. Use law of cosines for non right triangles that have no pairs.

I hoped this helped more than just myself :)

2 comments:

  1. When you determine what law to use you just look to see if you have a pair or not. If you have a non-right triangle with a pair you use the Law of Sines. If you don't have a pair just simply use the Law of Cosines.

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  2. you have a good explanation for this. It helped me a lot for the chapter test. Thanks!

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