Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 2 - Reasoning and Proof - 2-6 Proving Angles Congruent - Lesson Check - Page 124: 1


$m\angle1=90$ $m\angle2=50$ $m\angle3=40$

Work Step by Step

You can use the Vertical Angles Theorem to find the measure of each angle by identifying the vertical pairs.
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