Using CPCTC

Front

What does CPCTC stand for?

Back

CPCTC stands for 'Corresponding Parts of Congruent Triangles are Congruent.'

Front

What is the purpose of CPCTC in geometry?

Back

CPCTC is used to prove that corresponding parts of two congruent triangles are equal.

Front

What is the SAS Congruence Postulate?

Back

The SAS (Side-Angle-Side) Congruence Postulate states that 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

The ASA (Angle-Side-Angle) Congruence Postulate states that 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 SSS Congruence Postulate?

Back

The SSS (Side-Side-Side) Congruence Postulate states that if all three sides of one triangle are congruent to all three sides of another triangle, then the triangles are congruent.

Front

What is the HL Congruence Postulate?

Back

The HL (Hypotenuse-Leg) Congruence Postulate states that 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.

Front

True or False: CPCTC can be used before proving triangles congruent.

Back

False. CPCTC is used after proving triangles congruent.

Front

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

Back

Identify two sides and the included angle that are congruent between the two triangles.

Front

What information is needed to apply the ASA Congruence Postulate?

Back

You need two angles and the included side of one triangle to be congruent to two angles and the included side of another triangle.

Front

What is the relationship between congruent triangles and CPCTC?

Back

If two triangles are proven to be congruent, then their corresponding parts (sides and angles) are also congruent by CPCTC.