Tolong y temen2 pake caranya

<POR = 360 - (<SOR + <QOS + POQ)
<POR = 360 - (65 + 50 + 125)
<POR = 360 - 240
<POR = 120°

<PTR = 1/2 (<POR - <QOS)
<PTR = 1/2 (120 - 50)
<PTR = 1/2 x 70
<PTR = 35

The correct answer is C. 35°