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Circles (9th Grade Mathematics)

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9th Grade Mathematics At the end of this lesson, you will be able to: • Define radius and centre of a circle. • Identify interior and exterior of a circle. • Identify chord and diameter of a circle. • Explain major arc and minor arc. • Define circumference of the circle. • Differentiate between sector and segment. • Explain the angle subtend by a chord at a point. • Draw perpendicular from the centre to a chord. • Understand equal chords and their distances from the centre. • Explain angle subtended by an arc of a circle. • Explain cyclic quadrilateral.

Self-Study Content
  1. Circle: Introduction

    Class-9th: Mathematics: Circle: Introduction

  2. Circles: Definitions

    Class-9th: Maths: Circles: Definitions

  3. Circles: Interior and Exterior of a Circle

    Class-9th: Maths: Circles: Interior and Exterior of a Circle

  4. Circles: Chord and Diameter

    Class-9th: Maths: Circles: Chord and Diameter

  5. Circles: Major Arc and Minor Arc

    Class-9th: Maths: Circles: Major Arc and Minor Arc

  6. Circle: Check Your Understanding-1

    9th Grade Mathematics

  7. Circles: Circumfrence,Sector and Segment

    Class-9th: Maths: Circles: Circumfrence,Sector and Segment

  8. Circles: Angle Subtended by a Chord at a Point

    Class-9th: Maths: Circles: Angle Subtended by a Chord at a Point

  9. Circles: Theorem

    Class-9th: Maths: Circles: Theorem

  10. Circle: Check Your Understanding-2

    9th Grade Mathematics

  11. Circles: Perpendicular from the Centre to a Chord

    Class-9th: Maths: Circles: Perpendicular from the Centre to a Chord

  12. Circles: Theorem

    Class-9th: Maths: Circles: Theorem

  13. Circles: Perpendicular on the Line

    Class-9th: Maths: Circles: Perpendicular on the Line

  14. Circles: Equal Chords and their Distances From the Centre

    Class-9th: Maths: Circles: Equal Chords and their Distances From the Centre

  15. Circle: Check Your Understanding-3

    9th Grade Mathematics

  16. Circles: Results and Theorems of Angle Subtended by an Arc of a Circle

    Class-9th: Maths: Circles: Results and Theorems of Angle Subtended by an Arc of a Circle

  17. Circles: Relationship Between the Angles Subtended by an arc at the Centre and at a Point on the Circle.

    Class-9th: Maths: Circles: Relationship Between the Angles Subtended by an arc at the Centre and at

  18. Circles: Angle in Semicircle

    Class-9th: Maths: Circles: Angle in Semicircle

  19. Circles: Angles in the Same Segment

    Class-9th: Maths: Circles: Angles in the Same Segment

  20. Circles: Cyclic Quadrilaterals

    Class-9th: Maths: Circles: Cyclic Quadrilaterals

  21. Circle: Check Your Understanding-4

    9th Grade Mathematics

  22. Circle: Did You Know?

    Class-9th: Mathematics: Circle: Did You Know?

  23. Circle: Summary

    Class-9th: Mathematics: Circle: Summary

  24. Circle: Assessment

    9th Grade Mathematics

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