cpctc

Front

What does CPCTC stand for?

Back

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

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.

Front

If ∆ABC ≅ ∆DEF, what can we say about ∠A and ∠D?

Back

∠A ≅ ∠D because corresponding angles of congruent triangles are congruent.

Front

What is the significance of the congruence statement ∆ABC ≅ ∆DEF?

Back

It indicates that all corresponding sides and angles of triangles ABC and DEF are equal.

Front

How can you determine if two triangles are congruent?

Back

Two triangles can be determined to be congruent using criteria such as SSS (Side-Side-Side), SAS (Side-Angle-Side), ASA (Angle-Side-Angle), AAS (Angle-Angle-Side), or HL (Hypotenuse-Leg for right triangles).

Front

What is the corresponding side to side AB in triangle ∆ABC if ∆ABC ≅ ∆DEF?

Back

The corresponding side to AB in triangle ∆DEF is DE.

Front

If ∠M ≅ ∠A and ∠N ≅ ∠B, what can we conclude about triangles ∆MAN and ∆ABC?

Back

We can conclude that triangles ∆MAN and ∆ABC are congruent by the Angle-Angle (AA) criterion.

Front

What is the relationship between corresponding sides of congruent triangles?

Back

The corresponding sides of congruent triangles are equal in length.

Front

If ∆XYZ ≅ ∆PQR, what is the corresponding angle to ∠X?

Back

The corresponding angle to ∠X is ∠P.

Front

What does it mean if two angles are corresponding angles?

Back

Corresponding angles are angles that are in the same position in different triangles that are congruent.