Question

tuvwx ~ edcba. find cd.

Explanation:

Step1: Find similarity ratio

$\text{Ratio} = \frac{WV}{AE} = \frac{15}{3} = 5$

Step2: Match corresponding sides

Corresponding side to $CD$ is $XT$ (from similarity $TUVWX \sim EDCBA$), length $XT=10$

Step3: Calculate $CD$

$CD = \frac{XT}{\text{Ratio}} = \frac{10}{5} = 2$

Answer:

2