Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 9 - Section 9.1 - Lines and Angles - Exercise Set - Page 611: 42


$\angle x, \angle y\ and\ \angle z\ are\ 110^o$

Work Step by Step

When parallel lines are cut by a transversal, opposite interior angles are equal. $\angle x$ is equal to the $110^o$ angle. Corresponding angles are also equal. $\angle y=\angle x=110^o$. $\angle z$ is opposite $\angle y$ so is also $110^o$.
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