Congruent Triangles and Corresponding Parts (and some)

Front

What are congruent triangles?

Back

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

Front

What does it mean for two angles to be corresponding?

Back

Corresponding angles are angles that are in the same relative position in two different shapes or figures.

Front

If two triangles are congruent, what can we say about their corresponding sides?

Back

The corresponding sides of congruent triangles are equal in length.

Front

Back

They are identical in shape and size, with corresponding angles and sides being equal.

Front

How do you find the measure of an unknown angle in a congruent triangle?

Back

Use the fact that corresponding angles in congruent triangles are equal.

Front

What is the relationship between the sides of congruent triangles?

Back

The lengths of corresponding sides are equal.

Front

Back

Front

What is the Angle-Angle (AA) criterion for triangle congruence?

Back

If two angles of one triangle are equal to two angles of another triangle, the triangles are congruent.

Front

What is the Side-Side-Side (SSS) criterion for triangle congruence?

Back

If three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

Front

What is the Side-Angle-Side (SAS) criterion for triangle congruence?

Back

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.