Answer
a.) 90$^{\circ}$-x$^{\circ}$
b.) 102$^{\circ}$-3x$^{\circ}$
c.) 90$^{\circ}$-2x$^{\circ}$-5y$^{\circ}$
Work Step by Step
To find the second of two complimentary angles you subtract the value of the given angle from 90$^{\circ}$.
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 1 - Section 1.2 - Angles and Their Relationships - Exercises - Page 48: 28
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