Answer:
r ll s
Step-by-step explanation:
The easiest way to solve thi is to draw a picture .
P and Q are parallel, so draw those as two opposite seides of a square.
R and P are perpendictular so draw that as the top line of the square. Since it is perpendicular to P, R has to be perpendictular to Q.
Draw line S as the bottom line of the square and the same rules apply, so R is parallel to S
