We have the next points, we will graph them
The point P (3,0) point in red
The point Q (6,0) point in blue
The point R (6,7) point in green
The point S (3,7) point in purple
For the sides
PQ= 6-3 = 3
PS= 7-0= 7
RS= 6-3=3
QR= 7-0= 7
PQ=3
PS=7
RS=3
QR=7