Answer
True
Work Step by Step
Since lines ST and UQ are perpendicular (as indicated by the fact that they form a Right Angle) all of the angles that they form where they intersect will be equal to 90$^{\circ}$.
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 8 - Geometry - 8.1 Basic Geometric Terms - 8.1 Exercises - Page 540: 27
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