Geometry Basics: Points, Lines & Planes
Imagine geometry as a language with its own vocabulary. A point is simply a location with no size or shape, usually labeled with a capital letter like A, B, or C. When points connect, they form a line that extends infinitely in both directions.
Sometimes we only need part of a line, which is where line segments come in. These have two endpoints and a measurable length. A ray is different - it has one endpoint and extends infinitely in one direction (think of a flashlight beam).
A plane is a flat surface that extends infinitely in all directions. Points can be collinear (lying on the same line) or coplanar (lying on the same plane). When line segments have the same length, we say they're congruent segments.
Think of it this way: Points are like stars, lines are like laser beams that go on forever, and planes are like endless sheets of paper that stretch in all directions!
