Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 6 - Review Exercises - Page 315: 7


arc AC=80$^{\circ}$

Work Step by Step

m$\angle$DAB=180-m$\angle$EAD m$\angle$DAB=180-70 m$\angle$DAB=110 m$\angle$D=180-30-110 m$\angle$D=40 arc AC=2m$\angle$D arc AC=80$^{\circ}$
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