Triangle Congruence Flashcard

Front

What is the Vertical Angles Theorem?

Back

Vertical angles are the angles opposite each other when two lines cross. They are always congruent.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a criterion for triangle congruence.

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape are called congruent triangles.

Front

What is the Reflexive Property?

Back

The Reflexive Property states that any geometric figure is congruent to itself.

Front

What is the Angle Bisector Theorem?

Back

The Angle Bisector Theorem states that the angle bisector divides the opposite side into segments that are proportional to the adjacent sides.

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a criterion for triangle congruence.

Front

What is the definition of the Midpoint?

Back

The midpoint of a line segment is the point that divides the segment into two equal parts.

Front

What is the SSS criterion for triangle congruence?

Back

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

Front

What is the definition of Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of the transversal and inside the two lines.

Front

What is the ASA criterion for triangle congruence?

Back

ASA stands for Angle-Side-Angle, meaning 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.