Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 2 - Reasoning and Proof - 2-6 Proving Angles Congruent - Practice and Problem-Solving Exercises - Page 127: 46

Answer

line r

Work Step by Step

Point E lies on $\overset\longleftrightarrow {EC}$, which is also labeled line r.
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