Triangle Congruence Postulates

Front

What does SSS stand for in triangle congruence?

Back

Side Side Side: Three congruent corresponding sides.

Tags

CCSS.HSG.SRT.B.5

Front

What does SAS stand for in triangle congruence?

Back

Side Angle Side: Two congruent corresponding sides and the included angle.

Tags

CCSS.HSG.SRT.B.5

Front

What does AAS stand for in triangle congruence?

Back

Angle Angle Side: Two congruent angles and a non-included side.

Tags

CCSS.HSG.SRT.B.5

Front

What does ASA stand for in triangle congruence?

Back

Angle Side Angle: Two congruent angles and the included side.

Tags

CCSS.HSG.SRT.B.5

Front

What does SSA stand for in triangle congruence?

Back

Side Side Angle: Not a valid postulate for proving triangle congruence.

Tags

CCSS.8.G.A.2

Front

What is the H-L Theorem?

Back

Hypotenuse-Leg Theorem: Used to prove the congruence of right triangles if the hypotenuse and one leg are congruent.

Tags

CCSS.HSG.SRT.B.5

Front

Can AAA be used to prove triangle congruence?

Back

No, AAA (Angle Angle Angle) does not prove congruence, only similarity.

Tags

CCSS.8.G.A.2

Front

What is the difference between congruence and similarity in triangles?

Back

Congruence means the triangles are identical in size and shape; similarity means they have the same shape but not necessarily the same size.

Tags

CCSS.8.G.A.2

Front

What is the significance of corresponding parts in triangle congruence?

Back

Corresponding parts of congruent triangles are equal in length and measure.

Tags

CCSS.8.G.A.2

Front

How can you determine if two triangles are congruent using AAS?

Back

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

Tags

CCSS.HSG.SRT.B.5