**Answer:**

1.CD || **E****D**

2.**R****S**** **|| QS

**E****x****p****l****a****n****a****t****i****o****n****:**

Parallel line segments never meet, no matter how far they are extended. Two line segments are perpendicular if they form a 90 degree angle where they cross.

11 sec read

**Answer:**

1.CD || **E****D**

2.**R****S**** **|| QS

**E****x****p****l****a****n****a****t****i****o****n****:**

Parallel line segments never meet, no matter how far they are extended. Two line segments are perpendicular if they form a 90 degree angle where they cross.