Question

in triangle DEF DE=DF AND ANGLE D=55 DEGREE,IN TRIANGLE XY = XZ AND X=55 DEGREE IS ABC CONGRUENT TO TRIANGLE XYZ

Answer 1

Congruent triangles are those whose all angles and sides are equal. But in this case, we don't know that is XY=DE. So we can't say that they are congruent or not but we can say that they are similar.

Answer 2

NO the triangles are not congruent but they are similar !!