Elementary Geometry for College Students (6th Edition)

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

Chapter 6 - Section 6.1 - Circles and Related Segments and Angles - Exercises - Page 275: 11d


$m\angle 1=80^{\circ}$

Work Step by Step

In part a we determined that the measure of arc $AB=80^{\circ}$. The measure of a central angle is equal to the measure of its intercepted arc. Thus, $m\angle 1=80^{\circ}$.
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.