Q1
What is a point?
AAn exact location with no dimension
BA line with length
CA shape with area
DA type of angle
SSCClass 9 (SSC)Mathematics - Geometry (भूमिती)Ch 1 · Topic 2
Practice and Revision - Basic Concepts in Geometry
Let us practise and revise what we learned about basic concepts in geometry. Basic geometric concepts like points, lines, rays, and planes f
Core concept
A point represents an exact location with no dimension, while a line extends infinitely in both directions with only length.
How it works
Collinear points lie on the same straight line, while coplanar points or figures lie within the same flat plane.
Why it matters
The distance between two points can be measured, and the midpoint of a segment divides it into two equal parts.
Key detail
Understanding these basic concepts is essential for studying angles, triangles, and other geometric shapes and their properties.
Exam highlight
Key diagram
Keywords worth remembering
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Quick notes
• Point: exact location, no dimension.
• Line: extends infinitely, has length only.
• Collinear points: on same straight line.
• Coplanar: within the same flat plane.
• Distance between points can be measured.
• Midpoint divides segment into two equal parts.
• These are basic geometry building blocks.
• Essential for angles, triangles, shapes study.