The correct answers are:
a. △cjd≅△amy; and b. △dcj≅△yam
Step-by-step explanation:
If two triangles are congruent, this means that all corresponding angles of one triangle are congruent to corresponding angles of the second triangle, and all corresponding sides of one triangle are congruent to corresponding sides of the second triangle.
We are given the statement △jcd≅△may. This makes the corresponding angles j and m; c and a; and d and y.
This means that △cjd would need to be congruent to △amy, since the angles match up.
This also means that △dcj would need to be congruent to △yam, since the angles match up.