HELP WHATS THIS ANSWER?? WILL MARK BRAINLIEST

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

How can you construct perpendicular lines and prove theorems about perpendicular lines