Answer
Line l must be parallel to line m.
Work Step by Step
The lines are parallel because the corresponding angles 1 and 5 are congruent.
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 2 - Section 2.3 - Proving Lines Parallel - Exercises - Page 87: 1
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