When triangles are not right angle and we can no longer use SOH CAH TOA, one strategy is to use the Law of Sines.  This works in any situation where we have any angle and it’s opposite side as well as one other piece of information.

If you are unfamiliar with how to use the Law of Sines, check out the video below and then find two sets of practice questions below which have you either solving for an unknown side or an unknown angle.

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If you’ve been successful with the questions above trying find the error in the video below.  In this video I solve a Law of Sines problem incorrectly, making a common mistake that frequently happens on tests.  See if you can notice which error is made before it gets to the end of the video.

Now that you were able to take care of these, feel free to check out the printable questions below which also have you drawing triangles and solving some word problems.