# Math Help - law of sines and law of cosines

1. ## law of sines and law of cosines

how do you know which one to use?

2. show us the question.

3. Well see if you can use the sine law first and if you cant use it use the cosine law because the sine law is a lot easier to use.

4. Hello, tomatoes!

Generally, I found this to be true.

. . Given two angles and one side: Law of Sines

. . Given one angle and two sides: Law of Cosines