Question

what kind of triangles can we use hl as a reason for congruence? right triangles acute triangles obtuse triangles equilateral triangles

Explanation:

HL (Hypotenuse - Leg) is a congruence criterion specifically for right - angled triangles. In a right - angled triangle, if the hypotenuse and one leg of one right - angled triangle are equal to the hypotenuse and one leg of another right - angled triangle, then the two right - angled triangles are congruent. Acute triangles (all angles less than \(90^{\circ}\)), obtuse triangles (one angle greater than \(90^{\circ}\)) and equilateral triangles (all sides and angles equal) do not use the HL criterion for congruence.

Answer:

Right Triangles