Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 2 - Review Exercises - Page 131: 12


m$\angle$x=120$^{\circ}$ m$\angle$y=70$^{\circ}$

Work Step by Step

$\angle$x is corresponding to an angle with a measure of 120$^{\circ}$, so x has that same measure. The third angle in the triangle that includes $\angle$y, is supplementary to m$\angle$x. Therefore its value is 180-m$\angle$x. m$\angle$y+50+180-m$\angle$x=180 m$\angle$y+50+60=180 m$\angle$=70$^{\circ}$
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.