# Chapter 3 - Parallel and Perpendicular Lines - 3-3 Proving Lines Parallel - Practice and Problem-Solving Exercises - Page 161: 24

$a\parallel b$

#### Work Step by Step

The Converse of the Corresponding Angles Theorem tells us that if $\angle8\cong\angle 6$, then $a\parallel b$ because these angles are in the same place relative to where the transversal intersects lines a and b.

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