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 - Practice and Problem-Solving Exercises - Page 161: 22

Answer

$l\parallel m$

Work Step by Step

The Converse of the Corresponding Angles Theorem tells us that if $\angle2\cong\angle 10$, then $l\parallel m$ because these angles are in the same place relative to where the transversal intersects lines l and m.
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