## Elementary Geometry for College Students (7th Edition) Clone

Published by Cengage

# Chapter 6 - Section 6.1 - Circles and Related Segments and Angles - Exercises - Page 285: 11d

#### Answer

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

#### 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, $m\angle 1=80^{\circ}$.

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