Answer:
The acronym CPCTC stands for " Corresponding parts of congruent triangles are congruent. "
Explanation:
CPCTC--
It is a rule which states that if any of the two triangles are congruent by any of the congruency such as ASA, RHS , SAS or SS then the remaining sides and the remaining angles which were not covered in the congruency are also congruent.
Also, the acronym is:
Corresponding parts of congruent triangles are congruent.