Answer :

Answer:

scale factor = 2

Step-by-step explanation:

given that Δ ABC and Δ DFE are similar , then the ratios of corresponding sides are in proportion.

The scale factor is the ratio of corresponding sides , image to original.

AC and DE are corresponding sides, then

scale factor = [tex]\frac{DE}{AC}[/tex] = [tex]\frac{6}{3}[/tex] = 2