Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 6 - Review Exercises - Page 306: 8

Answer

m$\angle$B=35$^{\circ}$

Work Step by Step

AC=2m$\angle$D AC=2(40)=80 AD=360-80-130 AD=150 m$\angle$B=.5(AD-AC) m$\angle$B=.5(150-80) m$\angle$B=35$^{\circ}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.