Lessons 5.3, 5.5, 5.6_Triangle Congruence Practice

Front

What does SSA stand for in triangle congruence?

Back

SSA stands for Side-Side-Angle, which is not a valid criterion for triangle congruence.

Front

What is the SSS congruence postulate?

Back

SSS stands for Side-Side-Side, which states that if three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.

Front

What is the SAS congruence postulate?

Back

SAS stands for Side-Angle-Side, which states that 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 is the AAS congruence postulate?

Back

AAS stands for Angle-Angle-Side, which states that if two angles and a non-included side of one triangle are equal to two angles and the corresponding non-included side of another triangle, then the triangles are congruent.

Front

What is the ASA congruence postulate?

Back

ASA stands for Angle-Side-Angle, which states that 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

Can two triangles be congruent if only two sides are known?

Back

No, knowing only two sides (SSA) does not guarantee triangle congruence.

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

What is the importance of the included angle in SAS?

Back

In SAS, the included angle is crucial because it is the angle between the two sides being compared, ensuring the triangles are congruent.

Front

What does NEI stand for in triangle congruence?

Back

NEI stands for Not Enough Information, indicating that there is insufficient data to determine triangle congruence.

Front

What is the relationship between triangle congruence and similarity?

Back

Congruent triangles are similar, but similar triangles are not necessarily congruent; similarity only requires proportional sides and equal angles.