Question

What is cpct? brifly define

Answer 1

CPCT is the short form of corresponding part of congruent triangle , it is used when you have proved a triangle congruent using any of the congruence rule like SAS , ASA ,SSS etc and you you have to prove something else also which  doesn't come under that criteria ,as the  triangles are already congruent (which you have proved) their corresponding part will be also congruent hence we use cpct there