Answer
m$\angle$4=112$^{\circ}$
Work Step by Step
Angles 1 and 4 are vertical angles so they are congruent.
m$\angle$4=m$\angle$1
m$\angle$4=112$^{\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 2 - Section 2.1 - The Parallel Postulate and Special Angles - Exercises - Page 79: 13b
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