Question

What additional information must be known to prove the triangles similar by SAS?

Answer 1

We must know what DF and JK are.

Explanation:

SAS similarity is when two sides are proportional and the corresponding angles are congruent.

K and F are congruent (A)

KL and GF seem to have a proportion of 5/6 or 6/5 (S)

We need the other S to prove SAS.