Elementary Geometry for College Students (7th Edition) Clone

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 2 - Section 2.3 - Proving Lines Parallel - Exercises - Page 100: 6

Answer

It cannot be confirmed that lines l and m are parallel.

Work Step by Step

You cannot say that lines l and m are parallel because the only information given is that vertical angles 6 and 7 are congruent which does not prove anything.
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