Geometry Terms Notes and Worksheets - Lindsay Bowden - Free Printable

The task involves filling in the definitions for various geometric terms based on the provided pictures. Below is the completed table with explanations for each term:

Completed Table:

| WORD | DEFINITION | PICTURE |
|-----------------|-----------------------------------------------------------------------------|----------------------------------|
| Point | A location in space with no size or dimension, represented by a dot. | ⋅ |
| Line | A straight path that extends infinitely in both directions. | ↔ |
| Plane | A flat, two-dimensional surface that extends infinitely in all directions. | A rectangle with arrows indicating extension. |
| Line Segment | A part of a line with two endpoints. | —— |
| Ray | A part of a line that starts at a point (endpoint) and extends infinitely in one direction. | → |
| Angle | The figure formed by two rays sharing a common endpoint (vertex). | ∠ |
| Parallel Lines | Two lines in the same plane that never intersect and are always the same distance apart. | ↔↔ |
| Perpendicular Lines | Two lines that intersect at a right angle (90 degrees). | ⊥ |

Explanation of Each Term:

1. Point:
- Definition: A point is a precise location in space. It has no size or dimensions (no length, width, or height). It is usually represented by a dot.
- Picture: A single dot (⋅).

2. Line:
- Definition: A line is a straight path that extends infinitely in both directions. It has no thickness and is one-dimensional.
- Picture: A straight line with arrows on both ends (↔) to indicate it extends infinitely.

3. Plane:
- Definition: A plane is a flat, two-dimensional surface that extends infinitely in all directions. It has no thickness.
- Picture: A rectangle with arrows on its sides to indicate that it extends infinitely in all directions.

4. Line Segment:
- Definition: A line segment is a part of a line that has two endpoints. It is finite in length.
- Picture: A straight line with two endpoints (——).

5. Ray:
- Definition: A ray is a part of a line that starts at a specific point (called the endpoint) and extends infinitely in one direction.
- Picture: A straight line with one endpoint and an arrow on the other end (→).

6. Angle:
- Definition: An angle is formed by two rays that share a common endpoint, called the vertex. The size of the angle is determined by the separation of the rays.
- Picture: Two rays originating from a common point (∠).

7. Parallel Lines:
- Definition: Parallel lines are two lines in the same plane that never intersect and are always the same distance apart.
- Picture: Two straight lines with arrows on both ends, showing they extend infinitely without intersecting (↔↔).

8. Perpendicular Lines:
- Definition: Perpendicular lines are two lines that intersect at a right angle (90 degrees).
- Picture: Two lines crossing each other with a small square box at the intersection to indicate a right angle (⊥).

Final Answer:

\boxed{
\begin{array}{|c|c|c|}
\hline
\text{WORD} & \text{DEFINITION} & \text{PICTURE} \\
\hline
\text{Point} & \text{A location in space with no size or dimension, represented by a dot.} & \cdot \\
\hline
\text{Line} & \text{A straight path that extends infinitely in both directions.} & \leftrightarrow \\
\hline
\text{Plane} & \text{A flat, two-dimensional surface that extends infinitely in all directions.} & \text{A rectangle with arrows indicating extension.} \\
\hline
\text{Line Segment} & \text{A part of a line with two endpoints.} & —— \\
\hline
\text{Ray} & \text{A part of a line that starts at a point (endpoint) and extends infinitely in one direction.} & \rightarrow \\
\hline
\text{Angle} & \text{The figure formed by two rays sharing a common endpoint (vertex).} & \angle \\
\hline
\text{Parallel Lines} & \text{Two lines in the same plane that never intersect and are always the same distance apart.} & \leftrightarrow \leftrightarrow \\
\hline
\text{Perpendicular Lines} & \text{Two lines that intersect at a right angle (90 degrees).} & \perp \\
\hline
\end{array}
}