Chapter Four:  
Congruent Triangles

Geometry   Notes

Chapter  4

Section  4.1
Section  4.2
Section  4.3
Section  4.4
Section  4.5
Section  4.6
Section  4.7

Geometry Contents

Take notes on the following topics.

Section 4-3  Triangle Congruence by ASA and AAS

Postulate 4-3 Angle-Side-Angle (ASA) Postulate

If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.

Postulate 4-3 Angle-Angle-Side (AAS) Theorem

If two angles and a non included side of one triangle are congruent to the corresponding two angles and side of a second triangle, then the two triangles are congruent.