Elementary Geometry for College Students (5th Edition)

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

Chapter 6 - Section 6.1 - Circles and Related Segments and Angles - Exercises: 3



Work Step by Step

$\overset{\frown}{DE}=\angle O$ by definition, therefore $\angle O=47.6^\circ$.
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