I continue practicing 2 column proofs by working through three examples involving overlapping triangles. I do two proofs proving two overlapping triangles are congruent and a third proof involving parallel line and isosceles triangles that are overlapping. EXAMPLES AT 3:15 7:16 14:16 Find free review test, useful notes and more at http://www.mathplane.com If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage www.YouTube.com/Profrobbob
