CPCTC Intro

Front

What does CPCTC stand for?

Back

Corresponding parts of congruent triangles are congruent.

Front

Which triangle congruence theorem can be used to prove the triangles are congruent?

Back

HL (Hypotenuse-Leg) theorem.

Front

When do you use 'CPCTC' in a proof?

Back

ALWAYS at the end.

Front

What postulate proves these triangles congruent?

Back

ASA (Angle-Side-Angle) postulate.

Front

What will the last 'reason' of this proof be?

Back

CPCTC.

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape; their corresponding sides and angles are equal.

Front

What does the SAS postulate state?

Back

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

Front

What does the AAS theorem state?

Back

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

Front

What is the definition of the HL theorem?

Back

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

Front

What is the purpose of CPCTC in proofs?

Back

To conclude that corresponding parts of congruent triangles are congruent.