We went over
Homework # 18: read Section 3.2 and from page 137
enter Thm. 3.1, 3.2, and 3.2 (about perpendicular lines) in your notes
DO: p 160 #12 (Converse AEA), 15 (Converse CIA), 21(p parallel to q by converse CAP, q parallel to r by converse CIA, p parallel to r because if three lines are coplanar and two of the lines are each parallel to a third line, then the two lines are parallel to one another. )
p162 #33 (A), 34 (A), 35 (N), 36 (A), 37 ( 50°)
p171 #71 ( Yes, Converse AEA), 72 (yes Converse CAP), 73 (no)
p178 # 1( 3/2), 3 (y = 3x+2), 5 ( yes) 7 (5/5 = 1)
HOMEWORK 19:
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