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PRS = 70°
maka, PTR = 180° - 40° - 70° = 70° maka PTS = 180° - 70° = 110°
a. RTQ = PTS = 110°
b. QPR = RSQ = 40°
c. PTR = 70°
d. QTS =PTR = 70°
e. PTS = 110°
hehe ini gk tau sih bener apa salah..