Given,
The diagram of the triangle is shown in the question.
For first diagram,
![\begin{gathered} AC=DE \\ \angle A=\angle E \\ \angle B=\angle F \\ \therefore\Delta ABC\cong\Delta\text{DEF} \end{gathered}]()
The triangles are congruent by Angle-angle-side (AAS) property.
For second diagram,

The triangles are congruent by Angle-side-angle (ASA) property.
For third diagram,

The triangles are congruent by Side-side-Side (SSS) property.