Geometry: Common Core (15th Edition)

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

Chapter 2 - Reasoning and Proof - Common Core Cumulative Standards Review - Selected Response - Page 134: 1

Answer

D

Work Step by Step

The measures of supplementary angles sum to 180 but are not necessarily congruent. The measures of complementary angles sum to 90 but are not necessarily congruent. Adjacent angles share a side but are not necessarily congruent. The Vertical Angle Theorem tells us that vertical angles are congruent.
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