Indicate the method you would use

Answer:
SSS can be used to prove that the given triangles are congruent.
Step-by-step explanation:
In the given two triangles ΔADC and ΔABC,
Hence, ΔADC ≅ ΔABC by Side-Side-Side (SSS) congruence.
SSS congruence-
If three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent.