Question

What is cpctc........................

Answer 1

Hello!

CPCTC is an acronym for corresponding parts of congruent triangles are congruent. CPCTC is most commonly used near the end of a proof which asks somebody to show that two angles or two sides are congruent.
Corresponding means they're in the same position in the 2 triangles.

I think this is correct, I got it from my notebook

I hope this helps, and have a nice day!

Answer 2

Corresponding Parts of Congruent Triangles are Congruent
meaning that the same parts of triangles that are congruent will also be congruent