Answer
$\angle2 - 57^o$
$\angle3 - 57^o$
$\angle4 -123^o$
Work Step by Step
$\angle2 - 57^o$ vertical angle to $\angle1$
$\angle3 - 57^o$ alternate exterior angle to $\angle1$
$\angle4 -123^o$ supplementary to $\angle3$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 12 - Section 12.1 - Angles and Polygons - Exercise - Page 387: 13
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