Congruent Triangles Review

Front

What are congruent triangles?

Back

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

Front

What does the SSS postulate state?

Back

If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.

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 ASA postulate state?

Back

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

Front

What does AAS prove?

Back

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

Front

What does SSA prove?

Back

SSA does not prove triangles are congruent; it can lead to ambiguous cases.

Front

What is the definition of corresponding parts of congruent triangles?

Back

The sides and angles of congruent triangles that match each other.

Front

What is the Triangle Sum Theorem?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is the definition of an included angle?

Back

The angle formed between two sides of a triangle.

Front

What is the definition of a non-included side?

Back

A side of a triangle that is not between two given angles.