#### Answer

Lines AD and BC are parallel.

#### Work Step by Step

Angles 1 and 2 being congruent means they are corresponding angles to parallel lines AD and BC.

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ISBN 10:
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ISBN 13:
978-1-33761-408-5

Lines AD and BC are parallel.

Angles 1 and 2 being congruent means they are corresponding angles to parallel lines AD and BC.

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