Picture attached I have no idea how to prove this but I know that they are congruent to each other!

Question

anonymous · Answer

attachment

campbell_st · Answer

well the triangles aren't congruent, they are similar. 

to prove it is a really simple way

Triangle BAC      and   Triangle DFE

angle B              =         angle D        (Corresponding angles in parallel lines AB//DF)
angle C             =          angle E      (Corresponding angles in parallel lines AC//FE)

therefore similar by Angle Angle postulate

anonymous · Answer

@campbell_st so line AB is congruent to line DF?

campbell_st · Answer

its similar.... the tirangles aren't identical.... only similar... there is a scaling factor between AB and DF

anonymous · Answer

alright. thank you!