Question

Can someone help me ?

Answer 1

From how it appears, it seems as the answer will be AC is four times longer than DF. If you lined up four DF lines next to AC, it would be congruent

Answer 2

AC is four times longer than DF

Explanation:

AC is the diameter of the circle E and DE is the radius of the circle E

AC = 2 x DE

DE is the diameter of the circle F and DF is the radius of the circle F

DE = 2 x DF

AC = 2 x DE

AC = 2 x (2 x DF)

AC = 4 x DF

So AC is four times longer than DF