6.1-3 Congruent Triangles

Front

What is the Reflexive Property of Congruence?

Back

Front

What does it mean for two figures to be congruent?

Back

Two figures are congruent if they have the same size and shape.

Front

How do you write that two angles are congruent?

Back

Front

What is a median in a triangle?

Back

A median is a line segment that connects a vertex of a triangle to the midpoint of the opposite side.

Front

What is the Vertical Angles Theorem?

Back

The Vertical Angles Theorem states that when two lines intersect, the opposite (or vertical) angles are congruent.

Front

What is the Symmetric Property of Congruence?

Back

The Symmetric Property of Congruence states that if one figure is congruent to another, then the second figure is congruent to the first.

Front

What is the Transitive Property of Congruence?

Back

The Transitive Property of Congruence states that if figure A is congruent to figure B, and figure B is congruent to figure C, then figure A is congruent to figure C.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position at each intersection where a straight line crosses two others.

Front

What is the Third Angles Theorem?

Back

The Third Angles Theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the third angles are also congruent.

Front

What is an altitude in a triangle?

Back

An altitude is a perpendicular segment from a vertex to the line containing the opposite side.