Question

qrstu ~ cgfed. find qr.
qr = \boxed{}

Explanation:

Step1: Find similarity ratio

$\text{Ratio} = \frac{SR}{FE} = \frac{12}{3} = 4$

Step2: Calculate corresponding side QR

$QR = CD \times \text{Ratio} = 4 \times 4 = 16$

Answer:

16