Lines that have one and only one point in common are known as intersecting lines.
A minimum of two lines are required for intersection
The common point where all the intersecting lines meet is called the Point of Intersection
All the intersecting lines form angles at the point of intersection

In figure, there are two lines AB and CD which intersect each other at O

A. Figure 2
B. Figure 3
C. Figure 1
D. Figure 4
Correct Answer: A
Step 1: Intersecting lines cross at a common point.
Step 2: Figure 2 has two lines, which intersect each other at a single point.
Step 3: So, Figure 2 represents a pair of intersecting lines.
Q1: Which figure shows a pair of intersecting lines?
Q: What is the point of intersection?
A: The point where two or more lines cross or meet.
Q: How many lines are needed for an intersection?
A: At least two lines.