Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 2 - Review Exercises - Page 123: 1a

Answer

Lines AD and BC are parallel.

Work Step by Step

Angles 1 and 2 being congruent means they are corresponding angles to parallel lines AD and BC.
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