Finall Answer:
The congruences true by CPCTC (Corresponding Parts of Congruent Triangles are Congruent) are those that involve corresponding parts of congruent triangles. This includes corresponding angles and sides.
Step-by-step explanation:
CPCTC (Corresponding Parts of Congruent Triangles are Congruent) dictates that corresponding parts of congruent triangles are congruent. In essence, if two triangles are congruent, then their corresponding angles and sides are also congruent.
This principle allows for the validation of congruences involving corresponding parts of triangles that are congruent, ensuring that their respective angles and sides match up accordingly. This theorem is crucial in geometry proofs, establishing relationships between congruent triangles and enabling deductions based on their corresponding parts.