Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 1 - Section 1.7 - The Formal Proof of a Theorem - Exercises - Page 53: 16

Answer

See the picture below:

Work Step by Step

Given: $\angle 1$ and $\angle 2$ are right angles. ($m\angle 1=m\angle 2=90^{\circ}$) Prove: $\angle1 \cong\angle 2$
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