This document defines and explains basic geometric terms including points, lines, planes, and their relationships. It states that a point has no size, a line extends indefinitely in both directions and is made up of points, and a plane is a flat surface that extends without limits and contains points. The document also defines terms related to whether geometric elements like points, lines, and planes are collinear, coplanar, or intersecting.

2. Undefined Terms
1. Point
- Indicator of a position
- It does not occupy an area
- It does not have any width, length, or depth

3. Undefined Terms
2. Line
- A collection of continuous points that extends
indefinitely in both directions
- it is usually denoted as a segment with arrows
on both ends

4. Undefined Terms
3. Plane
- A set of points contained in a flat surface and
extends indefinitely in all directions
- A plane is commonly denoted as a closed four-
sided figure

5. Defined Terms
1. Space
- is the set of all points
2. Collinear points
- points that lie on the same line

6. Defined Terms
3. Non-collinear points
- are points that do not lie on the same line
4. Coplanar points
- are points that lie in the same plane

7. Defined Terms
5. Non-coplanar points
- points that do not lie on the same plane
6. Coplanar lines
- are lines that lie on the same plane
7. Non-coplanar lines
- are lines that do not lie on same plane

8. Defined Terms
8. Intersection of geometric figures
- the set of all points that are common to the
figures involved