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Geometry U2 Vocab

Undefined Term A word that is not mathematically defined using known words.
Point A point has no dimension. It is represented by a small dot.
Line A line has one dimension and extends without end in two directions.
Plane A plane has two dimensions. It is a flat surface with no thickness and extends forever.
Line Segment Part of a line that consists of two endpoints, and all points on the line between the endpoints.
Ray Part of a line that has one fixed endpoint and extends infinitely along the line from the endpoint.
Angle Consists of two rays with the same endpoint.
Congruent Angles Two angles that have the same measure.
Congruent Line Segments Two line segments that have the same measure.
Angle Bisector A ray that divides an angle into two angles that are congruent.
Segment Bisector A segment, ray, line, or plane that intersects a segment at its midpoint.
Perpendicular Lines Two Lines that lie in the same plane and do not intersect.
Parallel Lines Two Lines that lie in the same plane and do not intersect.
Transversal A line that intersects two or more coplanar lines at different points.
Midpoint The point on a segment that divides it into two congruent segments.
Equidistant The Same Distance.
Postulate (Axiom)
Created by: pdefelicemath