Identify whether triangles \(\Delta ABC\) and \(\Delta XZY\), as given below, with the measurements \(AB = 7.7 \ cm\), \(BC = 5.5 \ cm\), \(\angle B = 48^\circ\), \(XZ = 7.7 \ cm\), \(ZY = 5.5 \ cm\), \(\angle Z = 48^\circ\), are congruent.

What conditions did you use to establish their congruence?
Express the congruence