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: 18

Answer

a) $\angle Y$ b) right angles c) $m\angle Y$ d) $\angle X\cong\angle Y$

Work Step by Step

a) $\angle Y$ is the other angle in the given statement. b) Angles that measure 90 degrees are called right angles. c) If both angles measure 90, then the angles have equal measure. d) Since the measures of X and Y are equal, X and Y are congruent.
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