Answer
m$\angle$1=28$^{\circ}$
m$\angle$2=152$^{\circ}$
Work Step by Step
m$\angle$1=x
m$\angle$2=4x+40
m$\angle$1+m$\angle$2=180
x+4x+40=180
5x=140
x=28
m$\angle$1=x=28$^{\circ}$
m$\angle$2=4(28)+40=152$^{\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 - Review Exercises - Page 75: 29
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