Today's lesson involved taking a look at how perpendicular lines and triangles are related to angle pairs and parallel lines. We went over a couple of proofs involving parallel lines, and also showed the methods for using the triangle sum theorem in a variety of triangle calculations.
Assignment: Lesson 2-2; page 82-84; #2, 5, 12-15, 19, 24, 24 ;
Lesson 2-3; page 90; #14, 16-19, 24-27
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