STEM Excellence Series: Empowering the Next Generation

INTERSECTING LINES

Intersecting Lines

Definition Of Intersecting Lines

Lines that have one and only one point in common are known as intersecting lines.

More About 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

Example of Intersecting Lines

 

 example of Intersecting Lines

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

Video Examples:Intersecting Lines
 

Solved Example on Intersecting Lines

Ques: Which figure shows a pair of intersecting lines? 

 

 example of Intersecting Lines

Choices:

A. Figure 2
B. Figure 3
C. Figure 1
D. Figure 4

Correct Answer: A

Solution:

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.

Quick Summary

  • A minimum of two lines are required for intersection
  • The common point where all the intersecting lines meet is called the Point of Intersection
  • Intersecting lines form angles at the point of intersection
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🍎 Teacher Insights

Use visual aids and real-world examples (e.g., roads, scissors) to illustrate the concept of intersecting lines. Emphasize the difference between intersecting, parallel, and perpendicular lines.

🎓 Prerequisites

  • Points
  • Lines
  • Angles

Check Your Knowledge

Q1: Which figure shows a pair of intersecting lines?

Frequently Asked Questions

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.

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