Line vs Line Segment — Difference (with Table & FAQs)
Line vs Line Segment compared side by side — a 5-row comparison table, 4 key points and 3 exam FAQs. Class 6-8 Maths, free and no sign-up.
TL;DR: Line vs Line Segment compared side by side — a 5-row comparison table, 4 key points and 3 exam FAQs. Class 6-8 Maths, free and no sign-up.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
The main difference between Line and Line Segment: A line is a straight path extending infinitely in both directions. A line segment is a finite portion of a line with two fixed endpoints.
Line vs Line Segment — Comparison Table
| Basis | Line | Line Segment |
|---|---|---|
| Endpoints | No endpoints, extends infinitely | Two fixed endpoints |
| Length | Infinite | Finite and measurable |
| Representation | Usually shown with arrows at both ends | Shown with points at both ends |
| Notation | Written as line AB or with arrows | Written as segment AB or AB with a line above |
| Physical Example | A laser beam extended infinitely | A stick of wood with two ends |
Key Points
- A line extends infinitely in both directions with no endpoints
- A line segment has two definite endpoints and finite length
- Multiple line segments can form a line
- Lines and line segments are fundamental concepts in geometry
Frequently Asked Questions
What is the difference between a line and a line segment?
A line extends without end in both directions and has no fixed length. A line segment is the part of a line between two fixed endpoints, so it has a definite, measurable length.
How are they written in geometry?
A line through points A and B is written AB with a double-headed arrow above it, showing it continues both ways. The segment between the same two points is written AB with a plain bar above it.
What is a ray?
A ray is the third case: it has one fixed endpoint and extends without end in one direction only. A beam of light from a torch is the everyday picture of a ray.