Will someone please help me with this geometry? Please!!!!?

Question

Refer to figure, Which similarity can be used to prove that triangle ABC ~ triangle JKL?
http://i56.photobucket.com/albums/g198/simplybebop/untitled13.jpg

In the figure L II m II n. Find DF
http://i56.photobucket.com/albums/g198/simplybebop/untitled24.jpg

Answer 1

If two angles of one triangle are = to two corresponding angles of a second triangle, then the triangles are similar. This is sometimes shortened to AA

EF /5 = 15/6 --> EF = 75/6
DF = DE+EF = 5 +75/6 = 17.5

Answer 2

AAA?(Angle Angle Angle)

Answer 3

for the first one SAS