Categories Algebra 2 G-SRT.10 Law of Cosines Law of Sines Trigonometry Trigonometry – Find the missing angle Post author By mpershan Post date June 30, 2012 4 Comments on Trigonometry – Find the missing angle My sense is that this mistake isn’t as interesting as the rest, but it’s a pretty common one that I see in Trigonometry. The question is, what sort of activity would help this student out?