Elementary Geometry for College Students (5th Edition)

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

Chapter 2 - Section 2.6 - Symmetry and Transformations - Exercises - Page 116: 15a

Answer

m$\angle$D=63

Work Step by Step

Slide $\triangle$ABC over to $\triangle$DEF to see that angles A and D are congruent so their measures are equal.
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