i think that's a plane
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 =)
A plane is a flat surface that is two dimensional and that extends indefinitely in all directions.
A plane
It's a plane.
A plane could be considered an endless flat surface. A plane goes out infinitely in all directions, therefore, creating an endless flat surface.
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 =)
A plane
Plane
plane
A plane.
plane
A plane is a flat surface that is two dimensional and that extends indefinitely in all directions.
It is a flat two dimensional surface which extends to infinity in all directions.
A flat surface that extends forever is a plane
A plane.