SSS and SAS

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

True or False: Angle A is included between sides BC and CA.

Back

False

Front

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

Back

SAS

Front

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

Back

SSS

Front

What is the included angle in a triangle?

Back

The included angle is the angle formed between two sides of a triangle.

Front

If two triangles have two sides of equal length and the angle between them is also equal, what theorem can be used to prove they are congruent?

Back

SAS

Front

If two triangles have three sides of equal length, what theorem can be used to prove they are congruent?

Back

SSS

Front

What is the difference between SAS and SSS?

Back

SAS requires two sides and the included angle to be equal, while SSS requires all three sides to be equal.

Front

Can you prove triangle congruence with just two angles?

Back

No, you need at least one side length to use the triangle congruence theorems.