Elementary Geometry for College Students (7th Edition)

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

Chapter 4 - Review Exercises - Page 218: 28

Answer

1. We are told that triangles FAB and HCD are congruent. 2. We are told that triangles EAD and GCB are congruent. 3. CPCTC, so we obtain that AB and DC are congruent, and AD and BC are congruent. 4. Since opposite sides are congruent, ABCD is a parallelogram.
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