CPCTC

In geometry, 'CPCTC' is the abbreviation of a theorem involving congruent triangles. CPCTC stands for 'C'orresponding 'P'arts of 'C'ongruent 'T'riangles are 'C'ongruent. CPCTC states that if two or more triangles are congruent, then all of their corresponding parts are congruent as well.
If
:$riangle\; ABC\; cong\; riangle\; DEF,$
then the following conditions are true:
: $AB\; cong\; DE,$
:$BC\; cong\; EF,$
:$AC\; cong\; DF$
:
:
:
A related theorem is 'CPCFC', in which ''triangles'' is replaced with ''figures'' so that the theorem applies to any polygon or polyhedron.

Contents

External links

External links

★ Dr. Math explains the importance of CPCTC

★ A poem for CPCTC

★ Definitions for almost all math terms