Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
3. Proofs with Parallel Lines
Continue to next subchapter

Exercise 37 Page 516

The question is if the two congruent angles force the two lines and to be parallel. At first sight, the angles may look like alternate interior angles between and However, for that to be the case, the angles would have to look like below.

In fact, there is no way to claim that based on the given information.