Geometry: Common Core (15th Edition)

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

Chapter 1 - Tools of Geometry - 1-5 Exploring Angle Pairs - Practice and Problem-Solving Exercises: 11

Answer

$\angle AOB$ and $\angle COD$

Work Step by Step

$\angle AOD$ and $\angle AOB$ form a linear pair on $\overset\longleftrightarrow{DB}$. $\angle AOD$ and $\angle COD$ form a linear pair on $\overset\longleftrightarrow{AC}$. Linear pairs are supplementary.
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