Question

Use the given information to determine which segments must be parallel. If there are no segments, write none.

Answer 1

11. AW║BY

12. DX║YZ

13. AW║YZ

14. AW║DZ

Explanation:

11. If alternate interior angles are congruent, the lines the transversal crosses are parallel.

12. The sum ∠5+∠6 is an alternate interior angle with ∠10. The reasoning of problem 11 applies.

13. If same-side interior angles are suppplementary, the lines the transversal crosses are parallel.

14. Lines perpendicular to the same line are parallel.