Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 12 - Section 12.1 - Angles and Polygons - Exercise: 13

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 $\angle3$
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