Tolong yaaaa plisss makasih

QR / PQ = ST / PS
16 / 8 + 2x + 3 = 12 / 2x + 3
16 / 2x + 11 = 12 / 2x + 3
16 ( 2x + 3 ) = 12 ( 2x + 11 )
32x + 48 = 24x + 132
8x = 84
x = 10,5 cm

panjang PS = 2x + 3 = 2 × 10,5 + 3 = 21 + 3 = 24 cm (d)