CPCTC Intro review

Front

What does it mean for two triangles to be congruent?

Back

Two triangles are congruent if they have the same size and shape, meaning all corresponding sides and angles are equal.

Front

What is the symbol for congruence?

Back

The symbol for congruence is '≅'.

Front

If ΔABC ≅ ΔXYZ, what can we say about the corresponding angles?

Back

The corresponding angles are equal, so ∠A ≅ ∠X, ∠B ≅ ∠Y, and ∠C ≅ ∠Z.

Front

What is CPCTC?

Back

CPCTC stands for 'Corresponding Parts of Congruent Triangles are Congruent', which means that if two triangles are congruent, then their corresponding parts are also congruent.

Front

If two triangles are not congruent, what can we say about their corresponding sides?

Back

Their corresponding sides are not equal in length.

Front

What does it mean if ∠A ≅ ∠M?

Back

It means that angle A is equal in measure to angle M.

Front

If ΔPIG ≅ ΔCOW, what can we conclude about side WO?

Back

Side WO is equal in length to side GI.

Front

What is the relationship between the sides of congruent triangles?

Back

The corresponding sides of congruent triangles are equal in length.

Front

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

Back

The areas of congruent triangles are equal.

Front

What is the first step in determining if two triangles are congruent?

Back

The first step is to compare their corresponding sides and angles.