What is the scale factor from ADEF to AABC?

Answer:
1/2
Step-by-step explanation:
The red markings is not clear but I think the larger one is triangle DEF, if not, then the answer is 2
Answer:
1/2
Step-by-step explanation:
The dude above said if the big triangle is not DEF then it's two, but the big triangle is DEF therefore it is: 1/2.