Congruent Triangles Practice

Front

What is the definition of congruent triangles?

Back

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

Tags

CCSS.8.G.A.2

Front

List the valid postulates for proving triangle congruence.

Back

SSS (Side-Side-Side), SAS (Side-Angle-Side), ASA (Angle-Side-Angle), AAS (Angle-Angle-Side).

Tags

CCSS.HSG.SRT.B.5

Front

Which postulate is not valid for proving triangle congruence?

Back

SSA (Side-Side-Angle) is not a valid postulate for proving triangle congruence.

Tags

CCSS.HSG.SRT.B.5

Front

What does SSS stand for in triangle congruence?

Back

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

Tags

CCSS.HSG.SRT.B.5

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, which means 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.

Tags

CCSS.HSG.SRT.B.5

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, which means 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.

Tags

CCSS.HSG.SRT.B.5

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, which means 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.

Tags

CCSS.HSG.SRT.B.5

Front

If ΔDEF ≅ ΔRST, what can we conclude about their corresponding angles?

Back

∠D ≅ ∠R, ∠E ≅ ∠S, ∠F ≅ ∠T.

Tags

CCSS.HSG.CO.B.7

Front

If two triangles have two pairs of equal angles, what can we conclude about the triangles?

Back

The triangles are congruent by the AAS postulate.

Tags

CCSS.HSG.SRT.B.5

Front

If two triangles have one pair of equal sides and the included angle is equal, what postulate can be used to prove congruence?

Back

SAS (Side-Angle-Side) postulate.

Tags

CCSS.HSG.SRT.B.5