Typically this is represented by a line or a plane, both of which are infinite.
(When laymen refer to "lines" and "planes" they are referring to actual line segments and partial planes which have endpoints/end-ranges.)
It is a plane that extends indefinitely in all directions. It is very easy to remember just think about what flys in the air and needs to land on a "flat surface that extends indefinitely in all directions" (the ground).
A plane =)
Two, as it is a line.
It's a plane.
A plane is a flat surface that is two dimensional and that extends indefinitely in all directions.
A Line
They don't really have a start; they extend indefinitely in both directions.
A line.
It is a plane that extends indefinitely in all directions. It is very easy to remember just think about what flys in the air and needs to land on a "flat surface that extends indefinitely in all directions" (the ground).
A plane =)
Plane
A plane
Two, as it is a line.
the three types of UNDEFINED TERMS are:point: it has no dimension ( no width, no length no thickness),line: composed of points; can be extended in opposite direction;one dimensionplane: has four sides ad can be extended indefinitely in all directions; two dimensions
plane
a line can be indefinitely extended but a line segment is a part. a line segment cannot be extended:)
no, if they are both in the same plane and IF EXTENDED INDEFINITELY would never intersect at any point then the segments are considered parallel.