if under a correspondence, two angles and the included side of a triangle are equal to two corresponding angles and the included side of another triangle, then the triangles are congruent.
M Vidyashri answered this
ASA=Angle side angel
Jay Savla answered this
When 2 angles and the side contained by it of 1 triangle is exactly corresponding to 2 angles and the side contained by it of another triangle then those 2 triangles are said to be congruent by the ASA method of congruence