Because intersecting lines intersect with each other which intersect at a particular line . like the one in plus sign +

Intersecting Lines

Definition:
Intersecting lines are two lines that cross each other at a single point. The point at which they intersect is called the intersection point.

Example:
Imagine drawing two lines on a piece of paper that cross each other at a specific point. These lines are called intersecting lines.

Characteristics of Intersecting Lines:
1. Intersection Point: Intersecting lines have exactly one point in common where they cross each other.
2. Angle Measurement: The angles formed at the intersection point are not equal. They can be acute (less than 90 degrees), right (90 degrees), or obtuse (greater than 90 degrees).
3. Direction: Intersecting lines move in different directions from the intersection point.
4. No Common Length: Intersecting lines do not have a common length or distance between them.

Visual Representation:
To visually represent intersecting lines, draw two lines that cross each other at a point. Label the intersection point as "A" in the diagram below:

```
|
| A
-----+-----
|
|
```

Examples:
Here are a few examples to help you understand the concept of intersecting lines:

1. The letter "X" is formed by two intersecting lines.
2. The minute and hour hands of a clock intersect at different points throughout the day.
3. The edges of a piece of paper form intersecting lines when they cross each other.

In Conclusion:
Intersecting lines are two lines that cross each other at a single point. The intersection point is the only point they have in common. Understanding intersecting lines is important in geometry as it helps us analyze and solve problems involving angles, shapes, and spatial relationships.