Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

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


$m\angle 3=160^{\circ}$

Work Step by Step

In part c we determined that the measure of arc $CA=160^{\circ}$. The measure of a central angle is equal to the measure of its intercepted arc. Thus, $m\angle 3=160^{\circ}$.
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