MathematicsClass 6Basic Geometrical Ideas
Points, Lines, and Line Segments
Exploring fundamental geometric concepts of a point, an infinite line, and a finite line segment.
Class 6 · MathematicsCBSE & ICSE
Definition
A point is an exact location represented by a fine dot and has no dimension. A line is a straight path that extends endlessly in both directions without any endpoints. A line segment is a portion of a line with two distinct endpoints, possessing a fixed, measurable length.
Worked examples
1
The tip of a sharp pencil represents a point.
2
A stretched thread held tightly between two hands represents a line segment.
3
A railway track extending endlessly in both directions models a line.
Common mistakes
- • Thinking that a line has a fixed length that can be measured with a ruler.
- • Forgetting to draw arrowheads at both ends when representing a line.