#### 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:
$m\angle PQS+m\angle PQR=m\angle RQS$
$90+60=m\angle RQS$
$150=m\angle RQS$

Published by
Prentice Hall

ISBN 10:
0133281159

ISBN 13:
978-0-13328-115-6

150

You can help us out by revising, improving and updating this answer.

Update this answerAfter 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.