Geometry

Question Analysis:
This question tests knowledge of the Hypotenuse-Leg (HL) Theorem, which applies only to right triangles.

Key Concept Explanation:
The HL Theorem states that if the hypotenuse and one leg of a right triangle are congruent to those of another, the triangles are congruent.

Step-by-Step Solution:
Identify the HL conditions:
Triangles must be right triangles.
The hypotenuse and one leg must be congruent.

Option Analysis:
A (Incorrect): AAA does not prove congruence.
B (Correct): HL Theorem applies.
C (Incorrect): SSA is not valid for general triangles.
D (Incorrect): Hypotenuse and an angle alone ...