Chapter 2 Vocab

Front

Definition of angle bisector

Back

A ray that divides an angle into two CONGRUENT angles.

Front

Definition of supplementary angles

Back

Two angles that add to 180° (m<1 + m<2 = 180).

Front

Definition of complementary angles

Back

Two angles that add up to 90° (m<1 + m<2 = 90).

Front

Definition of congruent angles

Back

Angles with the same measure; measures equal each other.

Front

Definition of congruent segments

Back

segments that have the same length; the lengths equal each other

Front

Definition of midpoint

Back

A point that divides a segment into two CONGRUENT segments.

Front

Definition of segment bisector

Back

A point, ray, line, line segment, or plane that intersects a segment at its midpoint and splits it into two CONGRUENT segments.

Front

Definition of supplementary angles

Back

two angles that add to 180 degrees

Front

Vertical Angles Congruence Theorem

Back

vertical angles are congruent

Front

Segment Addition Postulate: If B is between A and C, then AB + BC = AC

Back

AB + BC = AC