Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 1 - Section 1.4 - Angles and Their Relationships - Exercises: 14b


x + y = 90

Work Step by Step

Since $\angle$1 and $\angle$2 are complementary; m$\angle$1 + m$\angle$2 = 90. Substitute in x for $\angle$1 and y in for $\angle$2. x + y = 90.
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