Answer
no
Work Step by Step
This is not a good definition. The statement is not reversible because opposite rays are not the only rays that share an endpoint. The rays that form a right angle are a counterexample.
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 2 - Reasoning and Proof - 2-3 Biconditionals and Definitions - Practice and Problem-Solving Exercises - Page 102: 28
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