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 - 3-3 Proving Lines Parallel - Lesson Check: 6

Answer

The correct conclusion is $\overset\longleftrightarrow{BC}\parallel\overset\longleftrightarrow{AD}$

Work Step by Step

$\overset\longleftrightarrow{DC}$ is the transversal with the marked angles, so the Converse Same-side Interior Angles Theorem tells us the two lines intersected by $\overset\longleftrightarrow{DC}$ are paallel.
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.