6.1-3 Congruent Triangles

Front

What are congruent triangles?

Back

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

Front

What is the Reflexive Property of Congruence?

Back

Front

What is the Symmetric Property of Congruence?

Back

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

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

Angles that are in the same position in different triangles when the triangles are positioned in a certain way.

Front

What are alternate interior angles?

Back

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

Front

What is the Alternate Interior Angles Theorem?

Back

If two parallel lines are cut by a transversal, then each pair of alternate interior angles is congruent.

Front

What is a perpendicular bisector?

Back

A line that divides a segment into two equal parts at a 90-degree angle.

Front

What is a median in a triangle?

Back

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

Front

What is an altitude in a triangle?

Back

A segment from a vertex to the line containing the opposite side, forming a right angle with that side.