It is given that ∆ ABC ≅ ∆ RPQ. Is it true to say that BC = QR? Why?

Question

TextCorresponding Parts of Congruent TrianglesNCERT Exemplar

If given that ∆ABC ≅ ∆FDE and AB = 5 cm, B = 40° and A = 80°. Then which of the following is true?

It is given that ∆ ABC ≅ ∆ FDE and AB = 5 cm, ∠B = 40° and ∠A = 80°. Then which of the following is true?