Q1
A ray extends infinitely in:
Aone direction
Bboth directions
Cno direction
Dall directions equally
CBSEClass 6 (CBSE)MathematicsCh 2 · Topic 1
Points, Lines and Rays
Understanding the basic building blocks of geometry.
Core concept
These basic elements combine to form all more complex geometric shapes — for instance, a triangle is formed by three line segments meeting at three points, and understanding these fundamentals is essential before studying angles, polygons, and other shapes. Real-world examples help visualise these concepts: a laser beam approximates a ray (starting point, travelling in one direction), while the edge of a ruler approximates a line segment (a fixed, measurable length).
Exam highlight
Key diagram
- Show a diagram comparing a point, line, ray, and line segment.
Keywords worth remembering
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Quick notes
• A point marks a position with no size; a line extends infinitely both ways.
• A ray starts at one point and extends infinitely in one direction only.
• A line segment has two fixed endpoints, giving it a measurable length.
• These basic elements combine to form all more complex geometric shapes.