Label each pair of triangles with the postulate or theorem that proves the triangles are congruent.

Answer:
We can conclude that Δ ABC ≅ Δ DEF by AAS postulate.
Step-by-step explanation:
Δ ABC and Δ DEF are congruents because:
1. Their non-included sides BC and EF are equal (7 units = 7 units)
2. Their angles ∠A and ∠D are equal (39° = 39°)
3. Their angles ∠C and ∠F are equal (64° = 64°)
Now, we can conclude that Δ ABC ≅ Δ DEF by AAS postulate.