An Introduction to Points, Lines, and Planes

A detailed tutorial on identifying points, lines, and planes. Step by step tutorial including several examples of how to indentify different types of points, lines, and planes for reference.

Points, lines and planes might not seem very similar, but they are all connected. Points can be found in or on a line or plane, and lines form the planes. Points are simply locations, and are represented by small dots. There are a few different kinds of points. Collinear points are points that lie on the same line, while noncollinear points are points that don’t lie on the same line. Coplaner points lie in the same plane, while noncoplaner points do not.  Lines have no thickness to them and extend infinitely in both directions. There are several different types of lines. There are skew lines, which run next to each other (although not parallel) but never touch each other. There are parallel lines and perpendicular lines, and there are intersecting lines. Planes have no thickness and are perfectly flat figures represented by a rectangle shape. Lines and planes can run in many different directions with each other, but have no special names.