Answer:
2. ∠DEF≅∠LFK, 3. ∠DFE≅∠LFK, 4. AA Postulate
Step-by-step explanation:
looking at step 2, the statement must be angle D is congruent to angle L or angle E is congruent to angle K. looking at the options, angle DEF is congruent to angle LFK is equal to angle E is congruent to angle K, so that goes in statement 2.
angle DFE is congruent to LFK goes in statement 3 since the two angles are vertical angles
for justification 4, it must be by AA postulate. SAS is a congruency theorem, not a similarity one
