FLASHCARD #2: Triangle Congruence Theorems

Front

What does SSS stand for in triangle congruence?

Back

SSS stands for Side-Side-Side, a theorem stating that if three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a theorem stating that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a theorem stating that if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, the triangles are congruent.

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a theorem stating 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, the triangles are congruent.

Front

What is the definition of congruency in triangles?

Back

Congruency means that two triangles have the same size and shape.

Front

Which triangle congruence theorem can be used to prove triangles are congruent if two sides and the angle between them are known?

Back

SAS (Side-Angle-Side) theorem can be used.

Front

Which triangle congruence theorem can be used to prove triangles are congruent if all three sides are known?

Back

SSS (Side-Side-Side) theorem can be used.

Front

Which triangle congruence theorem can be used to prove triangles are congruent if two angles and the side between them are known?

Back

ASA (Angle-Side-Angle) theorem can be used.

Front

Which triangle congruence theorem can be used to prove triangles are congruent if two angles and a non-included side are known?

Back

AAS (Angle-Angle-Side) theorem can be used.

Front

If two triangles have one angle equal to another and the sides adjacent to those angles are equal, what theorem applies?

Back

SAS (Side-Angle-Side) theorem applies.