Verified Answer :

you can use side-angle-side postulate

Answer:

By AA property of similarity, triangles BAC and DFE are similar.

Step-by-step explanation:

Given information: AC║FE and AB║FD.

If a transversal line intersect two parallel lines, then the corresponding angles are equal.

In triangle BAC and triangle DFE

\(\angle ABC=\angle FDE\)                  (corresponding angles)

\(\angle ACB=\angle FED\)                  (corresponding angles)

Two corresponding angles of triangles are equal. So, by AA property of similarity both triangles BAC and  DFE are similar.

\(\triangle BAC\sim \triangle DFE\)

Hence proved.