Answer
Incorrect.
Work Step by Step
Since the angle measures are known (although, not known to us) and the measures are equal, then the statement should not have a congruence symbol. The statement should read: m$\angle$ABC = m$\angle$DEF.
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 1 - Section 1.2 - Informal Geometry and Measurement - Exercises - Page 18: 14c
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