Cpctc

Front

What does CPCTC stand for?

Back

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

Front

What is a congruence statement?

Back

A congruence statement is a mathematical statement that indicates that two geometric figures are congruent, meaning they have the same shape and size.

Front

If ∆ABC ≅ ∆DEF, what can we conclude about the corresponding angles?

Back

The corresponding angles are congruent: ∠A = ∠D, ∠B = ∠E, ∠C = ∠F.

Front

What is the significance of the order of letters in a congruence statement?

Back

The order of letters in a congruence statement indicates which vertices correspond to each other in the congruent triangles.

Front

If two triangles are congruent, what can we say about their sides?

Back

The corresponding sides of the triangles are also congruent.

Front

How can you prove that two triangles are congruent?

Back

You can prove triangles are congruent using methods 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 measure of the third angle in a triangle if the other two angles are 45° and 55°?

Back

The measure of the third angle is 80° (since the sum of angles in a triangle is 180°).

Front

If ∆XYZ ≅ ∆ABC, what is true about segment XY and segment AB?

Back

Segment XY is congruent to segment AB.

Front

What does it mean for two angles to be congruent?

Back

Two angles are congruent if they have the same measure.

Front

In the congruence statement ∆PQR ≅ ∆XYZ, what does P correspond to?

Back

Point P corresponds to point X.