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Lines and Angles (9th Grade Mathematics)

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9th Grade Mathematics At the end of this lesson, you will be able to: • Define line, line segment, ray and angle. • Differentiate between intersecting lines and non-intersecting lines. • Relate between the angles formed when a ray stands on a line. • Write the axioms based on pairs of angles. • Prove the given theorems. • Find relation between parallel lines and transversal. • Prove theorems and examples related to lines parallel to the same line. • Prove the angle sum property of a triangle.

Self-Study Content
  1. Lines and Angles: Introduction

    Class-9th: Mathematics: Lines and Angles: Introduction

  2. Lines and Angles: Basic Terms and Definitions

    Class-9th: Maths: Lines and Angles: Basic Terms and Definitions

  3. Lines and Angles: Types of Angles I

    Class-9th: Maths: Lines and Angles: Types of Angles I

  4. Lines and Angles: Types of Angles II

    Class-9th: Maths: Lines and Angles: Types of Angles II

  5. Lines and Angles: Check Your Understanding-1

    9th Grade Mathematics

  6. Lines and Angles: Intersecting lines and Non -Intersecting Lines

    Class-9th: Maths: Lines and Angles: Intersecting lines and Non -Intersecting Lines

  7. Lines and Angles: Pairs of Angles

    Class-9th: Maths: Lines and Angles: Pairs of Angles

  8. Lines and Angles: Axiom I

    Class-9th: Maths: Lines and Angles: Axiom I

  9. Lines and Angles: Axiom II

    Class-9th: Maths: Lines and Angles: Axiom II

  10. Lines and Angles:Check Your Understanding-2

    9th Grade Mathematics

  11. Lines and Angles: Theorem I

    Class-9th: Maths: Lines and Angles: Theorem I

  12. Lines and Angles: Check Your Understanding-3

    9th Grade Mathematics

  13. Lines and Angles: Parallel Lines and a Transversal

    Class-9th: Maths: Lines and Angles: Parallel Lines and a Transversal

  14. Lines and Angles: Axiom III

    Class-9th: Maths: Lines and Angles: Axiom III

  15. Lines and Angles: Axiom IV and Theorem II

    Class-9th: Maths: Lines and Angles: Axiom IV and Theorem II

  16. Lines and Angles: Theorem III

    Class-9th: Maths: Lines and Angles: Theorem III

  17. Lines and Angles: Check Your Understanding-4

    9th Grade Mathematics

  18. Lines and Angles: Theorem IV, V

    Class-9th: Maths: Lines and Angles: Theorem IV, V

  19. Lines and Angles: Lines Parallel to the Same Line

    Class-9th: Maths: Lines and Angles: Lines Parallel to the Same Line

  20. Lines and Angles: Example

    Class-9th: Maths: Lines and Angles: Example

  21. Lines and Angles: Check Your Understanding-5

    9th Grade Mathematics

  22. Lines and Angles: Angle Sum Property of a Triangle

    Class-9th: Maths: Lines and Angles: Angle Sum Property of a Triangle

  23. Lines and Angles: Theorem VIII

    Class-9th: Maths: Lines and Angles: Theorem VIII

  24. Lines and Angles: Check Your Understanding-6

    9th Grade Mathematics

  25. Lines and Angles: Did You Know?

    Class-9th: Mathematics: Lines and Angles: Did You Know?

  26. Lines and Angles: Summary

    Class-9th: Mathematics: Lines and Angles: Summary

  27. Lines and Angles: Assessment

    9th Grade Mathematics

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