In ∆ABC and ∆DEF, ∠A = ∠D, ∠C = ∠F, and AC = DF, then by which criterion ∆ABC $\cong$ ∆DEF?

As In ∆ABC and ∆DEF: ∠A = ∠D, ∠C = ∠F, and AC = DF

Since two angles and the included side of one triangle is equal to the two angles and the included angle of another triangle. Then, by the ASA criterion, $∆\mathrm{ABC} \cong ∆\mathrm{DEF}$