The two triangles are similar. Complete parts a-c.



Answer:
AB = 16
AC = 20
Scale Factor : k = 4
Step-by-step explanation:
[tex]\frac{DF}{BC}[/tex] = [tex]\frac{12}{3}[/tex] = 4
[tex]\frac{AB}{4}[/tex] = [tex]\frac{12}{3}[/tex]
(4)(12)= (3)((AB)
48 = 3AB
16 = AB