Triangle Congruence Proofs

Front

What must be stated when using hypotenuse leg (HL) in a proof?

Back

There are right triangles.

Front

What do rigid motions preserve?

Back

Size and shape.

Front

What is the Reflexive Property?

Back

A property stating that any geometric figure is congruent to itself.

Front

What does SSS stand for in triangle congruence?

Back

Side-Side-Side.

Front

What does SAS stand for in triangle congruence?

Back

Side-Angle-Side.

Front

What is CPCTC?

Back

Corresponding Parts of Congruent Triangles are Congruent.

Front

How can you determine if two triangles are congruent?

Back

By using congruence criteria such as SSS, SAS, ASA, AAS, or HL.

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape.

Front

What is the Angle-Angle-Side (AAS) congruence criterion?

Back

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

Front

What is the significance of vertical angles in triangle proofs?

Back

Vertical angles are always congruent.