What is the point line and plane in geometry?

Answer 1

A geometrical point can be defined as a perfectly specific location (real points are also locations, but they do not have the perfection of geometrical points - nothing is that perfect in the physical universe, with the possible exception of a singularity). Any two different points (not two points that are in the same location and overlap each other) can be connected to create a line segment, and if that segment is extended to infinity in both directions, it is then a geometrical line. Any two different lines (that is, lines that have different locations and are not on top of each other) which intersect, will define a plane, the imaginary surface upon which the lines are drawn. Planes, like lines, are conceived to extend to infinity. They are perfectly flat. You can also generate a plane by rotating a line around a fixed point.