Answer: ΔABC≅ΔDEF by HL
Explanation:
There are five ways to find if two triangles are congruent: SSS, SAS, ASA, AAS and HL.
SSS (side, side, side) SSS stands for "side, side, side" and means that we have two triangles with all three sides equal. ...
SAS (side, angle, side) ...
ASA (angle, side, angle) ...
AAS (angle, angle, side) ...
HL (hypotenuse, leg)
Checking the shapes given , they both have hypotenuse and the same leg is being given , the hypotenuse Leg theorem also states that any two right triangles that have a congruent hypotenuse and a corresponding, congruent leg are congruent triangles.