Geometric Figures and Fundamental Definitions

Vocabulary flashcards covering the fundamental definitions of space, figures, and relationships between points and lines.

Space

The set of all points.

Figure

Any set of points.

Coplanar

A set of points that lie on the same plane.

Collinear points

Points that lie on the same line.

Noncollinear

Points that do not lie on the same line.

Noncoplanar points

Points that do not lie on the same plane.

Intersecting lines

Two lines with a common point.

Perpendicular lines

Two lines that intersect to form four right angles, written as $m \perp n$.

Parallel lines

Coplanar lines that do not intersect, written as $m \parallel n$.