CBSE Class 9 Mathematics – Introduction to Euclid’s Geometry

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Study Materials

9th

9th - Mathematics

Introduction to Euclid’s Geometry

Chapter Overview

This chapter introduces the basics of geometry as developed by the Greek mathematician Euclid. It focuses on the structure and logic of geometry through definitions, axioms, and postulates. Students gain insight into how mathematical reasoning and logical steps form the basis of geometric principles.

Important Keywords

  • Point: A location in space with no size or dimension.
  • Line: A straight one-dimensional figure that extends infinitely in both directions.
  • Plane: A flat two-dimensional surface that extends infinitely.
  • Axiom: A self-evident truth accepted without proof.
  • Postulate: A geometric statement assumed to be true without proof, specific to geometry.
  • Theorem: A statement that can be proven using logic and previously accepted facts like axioms and postulates.

Detailed Notes

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