anyone can help? pake carayaa

PS = x

TS/QR = PS/PQ
[tex] \frac{8}{12} = \frac{x}{x + 3} \\ \frac{2}{3} = \frac{x}{x + 3} \\ 2 \times (x + 3) = 3 \times x \\ 2x + 6 = 3x \\ 6 = 3x - 2x \\ 6 = x[/tex]


PS = 6 cm (A)