Law of Sines and Law of Cosines are special trig rules that can be used on non-right (acute or obtuse) triangles.  This guide summarizes the rules, along with strategies and tips for each and examples of all 4 cases involved.

Click here for the guide on Law on Sines and Law of Cosines.

Check out our YouTube tutorial on Law of Sines and Law of Cosines and Learning the Unit Circle.