1. Introduction to Geometry: Points, Lines, and Planes

2. Basic Geometric Figures
Point: Location in space represented by a dot and a capital letter.
Points have no size, only position.
Example:

3. Basic Geometric Figures
Line: Connected series of points that extends in both directions without end (represented by arrows).
Lines can be named by any two points on the line, or by one lowercase letter.

4. Basic Geometric Figures
Plane: Infinite set of points forming a flat surface extending in all directions, represented by a four-sided figure.
Example:

5. Basic Geometric Figures
Segment: Part of a line bounded by two endpoints.

6. Basic Geometric Figures
Ray: Part of a line that starts at a certain (end)point and continues forever in one direction.

7. Naming Geometric Figures
Intersection: The point shared by two crossing figures.

8. Naming Geometric Figures
Parallel: Two lines in the same plane that never intersect.
Represented by symbol “||” (line 1 || line2)

9. Naming Geometric Figures
Skew: Two or more lines that do not lie in the same plane. They are not parallel and do not intersect.

10. Real Life Example FedEx E Find four segments that intersect AC.
Find three segments || to AC.
Find four segments skew to AC. A F B
FedEx G C H D