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: 10c

Answer

180$^{\circ}$

Work Step by Step

Arc STR is a semicircle so its measure is 180$^{\circ}$.
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