Explanation
From the diagram, we see that the triangles have:
• equal hypotenuse,
,
• equal base.
HL Theorem states that if the hypotenuse and leg of a right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent.
We conclude that the triangles are congruent because of HL Theorem.
Answer
B) HL
