Answer
x+y=90$^{\circ}$
Work Step by Step
The sum of the measures of complimentary angles is equal to 90$^{\circ}$.
m$\angle$3=x
m$\angle$4=y
m$\angle$3+m$\angle$4=90$^{\circ}$
x+y=90$^{\circ}$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 1 - Test - Page 68: 17
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