tolong bantu jawab beserta caranya please besok dikumpulin

PQ/CD = QR/AD
PQ / 8 = 9 / 6
PQ = 9.8 / 6
PQ = 12 cm

SR/AB = QR/AD
SR / 12 = 9/6
SR = 9.12 / 6
SR = 18 cm

BC/PS = AD/QR
BC / 13,5 = 6 / 9
BC = 6 . 13,5 / 9
BC = 9 cm

Semoga membantu dan semoga bermanfaat...