Answer
150
Work Step by Step
The small square at the vertex of $\angle PQS$ indicates it is a right angle, which measures 90 degrees.
Use the Angle Addition Postulate:
$m\angle PQS+m\angle PQR=m\angle RQS$
$90+60=m\angle RQS$
$150=m\angle RQS$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 1 - Tools of Geometry - 1-7 Midpoint and Distance in the Coordinate Plane - Practice and Problem-Solving Exercises - Page 56: 68
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