Answer:
A
Step-by-step explanation:
The scale factor is measured as the ratio of corresponding sides between sides of ΔDEF and ΔABC, that is image to original, thus
[tex]\frac{ED}{BA}[/tex] = [tex]\frac{6}{2}[/tex] = 3
[tex]\frac{DF}{AC}[/tex] = [tex]\frac{9}{3}[/tex] = 3
[tex]\frac{EF}{BC}[/tex] = [tex]\frac{10.83}{3.61}[/tex] = 3
The scale factor of ΔABC → ΔDEF is 3
