POINT
A point is a location with no size or shape.
MIDPOINT FORMULA
The formula used to find the midpoint between two endpoints.
LINE
A line is made up of points with no thickness or width.
CONGRUENT SEMENTS
If two segments have the same length, then they are congruent.
RAY
A line that extends indefinitely in one direction.
COPLANAR
Points that line on the same plane.
COLLINEAR
Points that line on the same line.
LINE SEGMENT
A measurable part of a line consisting of 2 endpoints.
PERPENDICULAR BISECTOR
A line, segment or ray perpendicular to a segment at its midpoint.
SEGMENT ADDITION POSTULATE
If A, B, and C are collinear points and B is between A and C then AB + BC = AC
SEGMENT BISECTOR
A segment, line or plane that intersects a segment at its midpoint.
PARALLEL LINES
Two lines that never intersect.
DISTANCE FORMULA
The formula used to find the distance between two points on a coordinate plane.
PERPENDICULAR
Two lines that intersect at a 90 degree angle (right angle).
PLANE
A plane is a flat surface made up of points and extends indefinitely in all directions.