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: 78

Answer

no

Work Step by Step

The two labeled angles are supplementary as they form a line, so the measurements should sum to $180^o$. $103+87\ne180$
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