Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 8 - Geometry - 8.2 Angles and Their Relationships - 8.2 Exercises - Page 542: 9



Work Step by Step

To find the complement of an angle simply subtract the given angle from 90$^{\circ}$. 90$^{\circ}$ - 86$^{\circ}$ = 4$^{\circ}$ Therefore the complement of 86$^{\circ}$ is 4$^{\circ}$.
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