Geometry: Common Core (15th Edition)

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

Chapter 3 - Parallel and Perpendicular Lines - 3-2 Properties of Parallel Lines - Apply What You've Learned - Page 155: e



Work Step by Step

$\angle32$ is a same-side interior angle to the angle below it that is marked as a right angle. Right angles measure 90, and the same-side interior angle postulate tells us that same side interior angles are supplementary. If one angle of a supplementary pair measures 90, then the other measures 90.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.