Respuesta :

Answer:

The scale factor is 1.5

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

so In this problem

Let

z -----> the scale factor

[tex]z=\frac{B'C'}{BC}=\frac{C'D'}{CD}=\frac{D'A'}{DA}=\frac{A'B'}{AB}[/tex]

substitute the values

[tex]z=\frac{3}{2}=\frac{4.5}{3}=\frac{4.5}{3}=\frac{4.5}{3}[/tex]

therefore

[tex]z=1.5[/tex]

The scale factor is 1.5