Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 2 - Section 2.3 - Proving Lines Parallel - Exercises - Page 88: 32

Answer

1. If the two angles on the same side of a transversal are supplementary, then the supplement of the second angle is congruent to the first angle. 2. The supplement of the second angle is the first angle's corresponding angle. 3. If corresponding angles are congruent, then the lines are parallel. 4. Thus, if same side exterior angles are congruent, then the lines are parallel.
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