4.2 and 4.3 Congruent Triangles

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 does SAS stand for in triangle congruence?

Back

Side-Angle-Side; a method to prove triangles are congruent if two sides and the included angle of one triangle are equal to the corresponding parts of another triangle.

Front

What is the Reflexive Property?

Back

A property stating that any geometric figure is congruent to itself.

Front

What is CPCTC?

Back

Corresponding Parts of Congruent Triangles are Congruent; used to conclude that corresponding parts of congruent triangles are also congruent.

Front

What is the definition of an angle bisector?

Back

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

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 equal.

Front

What is the definition of a midpoint?

Back

The point that divides a segment into two equal parts.

Front

What is the definition of perpendicular lines?

Back

Two lines that intersect at a right angle (90 degrees).

Front

What is the definition of right angles?

Back

An angle that measures exactly 90 degrees.

Front

What is the definition of triangle congruence?

Back

A condition where two triangles are congruent if all their corresponding sides and angles are equal.