Answer
No, we do not know if these triangles are congruent to one another.
Work Step by Step
With these two triangles, we see that two of the sides of one triangle are congruent to two sides on the other triangle; however, we cannot use the hypotenuse-leg theorem because we don't know if these two triangles are right triangles or not, so we do not know if one of these sides is the hypotenuse or not.