Honors geometry chapter 4

more sad

Congruent figures

figures with the same size and shape

rigid motions

Slide, flip, turn a shape so that it fits another one

corresponding parts

corresponding parts of congruent figures are congruent. When all corresponding parts of two triangles are congruent then the triangles are congruent.

Reflexive properties of triangle congruence

For any triangle, triangle ABC is congruent to triangle ABC

Symmetric properties of triangle congruence

if ABC is congruent to DEF then DEF is congruent to ABC

Transitive properties of triangle congruence

if ABC is congruent to DEF and DEF is congruent to JKL the ABC is congruent to JKL

Third angles theorem

If two angles of one triangle are congruent to two angles of another triangle then the third angles are also congruent