Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.1 Points, Lines, Planes, and Angles - Exercise Set 10.1: 12

Answer

$58^o$

Work Step by Step

The two angles are complementary, so their sum is 90 degrees. The sum of the unknown angle and the 32-degree angle is 90 degrees. Thus, to find the measurement of the unknown angle, subtract 32 degrees from 90 degrees to obtain: $=(90-32)^o \\=58^o$
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