Congruent Triangle Proof Review

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.

Front

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

Back

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

Front

What does it mean for angles to be alternate interior angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines it intersects.

Front

What is the definition of a bisector in geometry?

Back

A line or segment that divides an angle or a segment into two equal parts.

Front

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

Back

If two sides of one triangle are congruent to two sides of another triangle and the included angle is congruent, then the triangles are congruent.

Front

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

Back

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

Front

What is the definition of corresponding parts of congruent triangles?

Back

The angles and sides that are in the same relative position in two congruent triangles.

Front

What is the definition of vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always congruent.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.