Which edges are parallel?
choose all answers that are correct.

pl and pr
uh and sr
gu and lp
ds and pr

wedfghjkl;

tyuiop[]ghjkl;

step-by-step explanatio89

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!