GEOMETRY, 2008
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2
| PAGE: 175 | SET: Exercises | PROBLEM: 2 |
Please look in your text book for this problem Statement
Given that 
.
If the two lines in a plane are cut by a transversal so that a pair of alternate interior angles is congruent, then the lines are parallel.
Since 
are the alternate interior angles and they are congruent.
Congruent alternate interior angles indicates parallel lines. So, 
.
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