Given: A, B, C, D are rt. 's

Prove: AD| |BC AB| |DC

Which of the following reasons could be used to conclude that the lines are parallel based on the given information?

1) If right angles are formed, then lines are parallel.

2) If two lines are perpendicular to another line, then they are parallel.

3) If alternate interior angles are equal, then lines are parallel.

Question

4 December, 17:35

+5

Answers (2)

Know the Answer?

Clare Bender · Answer 1

If two lines are perpendicular to another line, then they are parallel.

Elliot Mack · Answer 2

2) If two lines are perpendicular to another line, then they are parallel.