Main content

Unit: Congruence

Learn what it means for two figures to be congruent, and how to determine whether two figures are congruent or not. Use this immensely important concept to prove various geometric theorems about triangles and parallelograms.

Transformations and congruence

Triangle congruence

Theorems concerning triangle properties

Working with triangles

Theorems concerning quadrilateral properties

Unit: Congruence

Unit: Congruence

Transformations and congruence

Triangle congruence

Theorems concerning triangle properties

Working with triangles

Theorems concerning quadrilateral properties

Proofs of general theorems that use triangle congruence