Big book gre test 20 section 4 exercise 27

[user3902]

Help on this one would be greatly appreciated!

[user4535]

So as we know that the PQ || RS .

So angle SRP and QPR will make a total of 180 degrees.
SRP+QPR=180
=110+x+15=180.
x=180-125
x=55.
ANS :- E

[user3902]

Gotcha! I didn’t know that property. Thank you!!