Congruent Triangles

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Triangle proofs. Questions & Answer keys.

A helpful scientific calculator that runs in your web browser window.

Congruent triangles - Hypotenuse and leg of a right triangle. HL

Congruent triangles - Why AAA does not work

This provides 4 to 5 congruent triangle proofs for more complex situations.

Congruent triangles - Two angles and included side. ASA

Congruent triangles - Two angles and an opposite side. AAS

Gives almost all the concepts we need to prove congruent triangles(and with explanation)

Definition of a congruent angles

Theorems and Postules: ASA, SAS, SSS, & Hypotenuse Leg