Question

In ∆ABC and ∆DEF, it is given that ∠B = ∠E and ∠C = ∠F. In order that ∆ABC ≅ ∆DEF, we must have
(a) AB = DF
(b) AC = DE
(c) BC = EF
(d) ∠A = ∠D

Answer 1

In order that $△ABC\cong △DEF$, we must have BC = EF.
Hence, the correct answer is option (c).