Answer:
the HL Theorem
Step-by-step explanation:
The corresponding congruent parts in order are SSA.
There is no SSA theorem of postulate for congruence of triangles.
We notice that the congruent angles are right angles, so we are dealing with two right triangles.
The hypotenuse and leg of one right triangle are congruent to the corresponding parts of another right triangle.
By the HL theorem, the triangles are congruent.
Answer: the HL Theorem
