Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 12 - Section 12.1 - Angles and Polygons - Exercise: 15

Answer

$61^o$

Work Step by Step

$\angle AOC\ and\ \angle COB$ are supplementary. $\angle AOC$ has a measure of 119 degrees, so it follows that: $\angle \space COB=$$180^o-119^o=61^o$
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