This video lesson shows how to use the Law of Sines to find missing sides and angles of triangles. The Ambiguous Case is discussed. Rounding is also treated. Calculations are made using a TI Nspire CX calculator. In creating the video, I noticed that in a few places, the voiceover narration did not match perfectly the onscreen graphics (mostly different names and letters and slight number differences), but I will try to annotate some of these for better clarity.