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

Regan Chen

8 September, 02:09

+4

Answers (2)

Know the Answer?

Damian Johns · Answer 1

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

Jonathan Day · Answer 2

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