Congruent Segments
Two segments are congruent if they have the same length
Congruent Angles
Two angles are congruent if they have the same measure
Midpoint
Is a point that divides a segment into two congruent segments
Segment Bisector
A segment, ray, line, or plane that intersects a segment at its midpoint
Angle Bisector
Is a ray that divides an angle into two congruent angles
Perpendicular Lines
Two lines are perpendicular if they intersect to form a right angle
A line is perpendicular to a plane…
If it is perpendicular to each line in the plane that intersects it