Flashcard 2-3 Geometric Proofs

Front

What is always the first reason in a geometric proof?

Back

Given

Front

What property states that a segment or angle is congruent to itself?

Back

Reflexive Property

Front

What does SSS stand for in triangle congruence?

Back

Side-Side-Side Congruence

Front

What is the missing piece of information needed to prove triangles congruent using SAS?

Back

One pair of corresponding angles must be congruent.

Front

What does CPCTC stand for in geometric proofs?

Back

Corresponding Parts of Congruent Triangles are Congruent

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape.

Front

What is the SAS Congruence Postulate?

Back

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

Front

What is the ASA Congruence Postulate?

Back

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.

Front

What is the AAS Congruence Theorem?

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, then the triangles are congruent.

Front

What is the HL Congruence Theorem?

Back

If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent.