Answer:
AB ≅ DE, BC ≅ EF and CA ≅ FD are the corresponding congruent sides.
Explanation:
CPCTC means "Corresponding parts of congruent triangles are congruent".
If two triangles ΔABC and ΔDEF are congruent, then their corresponding sides will be equal.
Transformations (rotations, reflection and translation) of congruent triangles hardly makes any difference.
Therefore, AB ≅ DE, BC ≅ EF and CA ≅ FD are the corresponding congruent sides.