Triangle congruence Practice

Front

What does CPCTC stand for?

Back

CPCTC stands for 'Corresponding Parts of Congruent Triangles are Congruent'. It is used after triangles have been proven congruent.

Front

When can CPCTC be used?

Back

CPCTC can be used after triangles are proven congruent.

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for 'Angle-Angle-Side', a method to prove triangles are congruent.

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for 'Angle-Side-Angle', a method to prove triangles are congruent.

Front

What does SSA stand for in triangle congruence?

Back

SSA stands for 'Side-Side-Angle', which does not guarantee triangle congruence.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for 'Side-Angle-Side', a method to prove triangles are congruent.

Front

What does SSS stand for in triangle congruence?

Back

SSS stands for 'Side-Side-Side', a method to prove triangles are congruent.

Front

What is the HL theorem?

Back

HL stands for 'Hypotenuse-Leg', a method to prove the congruence of right triangles.

Front

Can two triangles be congruent if only two sides are known?

Back

Not necessarily; additional information about angles is needed to confirm congruence.

Front

What is the first step in proving triangles congruent using ASA?

Back

Identify two angles and the included side of one triangle that correspond to the other triangle.