Building Blocks of Geometry
Terms
Colinear
-
Lying in one line (usually refers to a set of points).
Congruent
-
Of exactly the same size and shape; in other words, of exactly the same
dimensions.
Coplanar
-
Existing in one plane (usually refers to points or lines).
Dimension
-
The number of lines required to span a region in space.
Line
-
A collection of points arrayed in a straight formation without limit.
Noncolinear
-
Not lying in one line (usually refers to a set of points).
Noncoplanar
-
Not existing in one plane (usually refers to points or lines).
Perpendicular
-
At a 90 degree angle (something is
perpendicular relative to something else).
Plane
-
A flat, boundless surface in space.
Point
-
A specific location in space.
Ray
-
A portion of a line with a fixed endpoint on one end that extends without
bound in the other direction.
Segment
-
A portion of a line with two endpoints and, thus, finite length.
Space
-
The collection of all points.
