Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.1 Points, Lines, Planes, and Angles - Exercise Set 10.1: 14

Answer

$167^o$

Work Step by Step

The two angles are supplementary, so their sum is 180 degrees. The sum of the unknown angle and the 13-degree angle is 180 degrees. Thus, to find the measurement of the unknown angle, subtract 13 degrees from 180 degrees to obtain: $=(180-13)^o \\=167^o$
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.