In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data:
diagram
Step 02:
congruent triangles:
ASA: angle-side-angle
Criteria: if two angles of one triangle, and the side contained between these two angles, are respectively equal to two angles of another triangle and the side contained between them, then the two triangles will be congruent.
That is the full solution.
