tolong yaa kak, jawabnya jangan asal asalan, harus pakai cara!!!

Bab Perbandingan
Matematika SMP Kelas VIII

PQ = QT = 6 cm

RT/RQ = ST/PQ
4/(4 + QT) = ST/PQ
4/(4 + 6) = ST/6
4/10 = ST/6
ST = 4 x 6 / 10
ST = 2,4 cm

jawabannya D