---
type: "Subject"
knowledge_type: "subject"
entity_type: "subject"
id: "66ab5c44543b6f461d7a9cec"
title: "Class 9 - Mathematics"
board: "CBSE"
curriculum: "CBSE"
class_id: "66ab5807ffbb5019db72215e"
class: "Class 9"
class_name: "Class 9"
class_slug: "class-9"
class_canonical_url: "https://www.edzy.ai/cbse-class-9"
class_markdown_url: "https://www.edzy.ai/okf/class/cbse-class-9.md"
subject: "Mathematics"
subject_slug: "mathematics"
canonical_url: "https://www.edzy.ai/cbse-class-9-mathematics"
markdown_url: "https://www.edzy.ai/okf/subject/cbse-class-9-mathematics.md"
source_type: "examSubject"
source_id: "66ab5c44543b6f461d7a9cec"
source: "Edzy"
book_count: "1"
chapter_count: "8"
topic_count: "55"
version: "1"
last_updated: "2026-06-25"
svg_icon: "https://edzy-ai.s3.ap-south-1.amazonaws.com/edzy-express-ts/1639aa97-a812-407a-8e9d-81ef4ccc868a.svg"
color_name: "Sky-blue"
color_light_foreground: "#0EA5E9"
color_light_background: "#E8F4F8"
color_dark_foreground: "#2FBDFD"
color_dark_background: "#2A3A4A"
---

# Class 9 - Mathematics

Mathematics is a CBSE Class 9 subject on Edzy.

## Knowledge Snapshot

| Field | Details |
| :--- | :--- |
| Board | CBSE |
| Curriculum | CBSE |
| Class | Class 9 |
| Subject | Mathematics |
| Subject Slug | mathematics |
| Book Count | 1 |
| Chapter Count | 8 |
| Topic Count | 55 |
| Last Updated | 2026-06-25 |

## OKF Hierarchy

| Level | Title | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- |
| Class | Class 9 | https://www.edzy.ai/cbse-class-9 | https://www.edzy.ai/okf/class/cbse-class-9.md |
| Subject | Mathematics | https://www.edzy.ai/cbse-class-9-mathematics | https://www.edzy.ai/okf/subject/cbse-class-9-mathematics.md |

## Book Index

| No. | Book ID | Book | Book Slug | Chapters | Topics | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | 69f0921a20bd2b7bb2b73018 | Ganita Manjari | ganita-manjari | 8 | 55 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari | https://www.edzy.ai/okf/book/cbse-class-9-mathematics-ganita-manjari.md |

## Book-Wise Chapter Index

### Ganita Manjari

| No. | Chapter ID | Chapter | Chapter Number In Book | Pages | Page Count | Topics | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | 69f0928920bd2b7bb2b75efe | Orienting Yourself: The Use of Coordinates | 1 | 1-15 | 15 | 5 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-orienting-yourself-the-use-of-coordinates | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-orienting-yourself-the-use-of-coordinates.md |
| 2 | 69f092a620bd2b7bb2b76489 | Introduction to Linear Polynomials | 2 | 16-40 | 25 | 6 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-introduction-to-linear-polynomials | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-introduction-to-linear-polynomials.md |
| 3 | 69f092bb20bd2b7bb2b76b18 | The World of Numbers | 3 | 41-67 | 27 | 6 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-the-world-of-numbers | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-the-world-of-numbers.md |
| 4 | 69f092d220bd2b7bb2b770e2 | Exploring Algebraic Identities | 4 | 68-91 | 24 | 8 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-exploring-algebraic-identities | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-exploring-algebraic-identities.md |
| 5 | 69f092e720bd2b7bb2b7737a | I’m Up and Down, and Round and Round | 5 | 92-117 | 26 | 8 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-im-up-and-down-and-round-and-round | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-im-up-and-down-and-round-and-round.md |
| 6 | 69f092fc20bd2b7bb2b77e42 | Measuring Space: Perimeter and Area | 6 | 118-154 | 37 | 8 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-measuring-space-perimeter-and-area | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-measuring-space-perimeter-and-area.md |
| 7 | 69f0931220bd2b7bb2b793fa | The Mathematics of Maybe: Introduction to Probability | 7 | 155-173 | 19 | 7 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-the-mathematics-of-maybe-introduction-to-probability | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-the-mathematics-of-maybe-introduction-to-probability.md |
| 8 | 69f0933520bd2b7bb2b7b5b9 | Predicting What Comes Next: Exploring Sequences and Progression | 8 | 174-198 | 25 | 6 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-predicting-what-comes-next-exploring-sequences-and-progression | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-predicting-what-comes-next-exploring-sequences-and-progression.md |

## Chapter Index

| No. | Book ID | Chapter ID | Chapter | Chapter Number In Book | Pages | Page Count | Topics | Canonical URL | Markdown URL |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | 69f0921a20bd2b7bb2b73018 | 69f0928920bd2b7bb2b75efe | Orienting Yourself: The Use of Coordinates | 1 | 1-15 | 15 | 5 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-orienting-yourself-the-use-of-coordinates | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-orienting-yourself-the-use-of-coordinates.md |
| 2 | 69f0921a20bd2b7bb2b73018 | 69f092a620bd2b7bb2b76489 | Introduction to Linear Polynomials | 2 | 16-40 | 25 | 6 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-introduction-to-linear-polynomials | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-introduction-to-linear-polynomials.md |
| 3 | 69f0921a20bd2b7bb2b73018 | 69f092bb20bd2b7bb2b76b18 | The World of Numbers | 3 | 41-67 | 27 | 6 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-the-world-of-numbers | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-the-world-of-numbers.md |
| 4 | 69f0921a20bd2b7bb2b73018 | 69f092d220bd2b7bb2b770e2 | Exploring Algebraic Identities | 4 | 68-91 | 24 | 8 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-exploring-algebraic-identities | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-exploring-algebraic-identities.md |
| 5 | 69f0921a20bd2b7bb2b73018 | 69f092e720bd2b7bb2b7737a | I’m Up and Down, and Round and Round | 5 | 92-117 | 26 | 8 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-im-up-and-down-and-round-and-round | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-im-up-and-down-and-round-and-round.md |
| 6 | 69f0921a20bd2b7bb2b73018 | 69f092fc20bd2b7bb2b77e42 | Measuring Space: Perimeter and Area | 6 | 118-154 | 37 | 8 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-measuring-space-perimeter-and-area | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-measuring-space-perimeter-and-area.md |
| 7 | 69f0921a20bd2b7bb2b73018 | 69f0931220bd2b7bb2b793fa | The Mathematics of Maybe: Introduction to Probability | 7 | 155-173 | 19 | 7 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-the-mathematics-of-maybe-introduction-to-probability | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-the-mathematics-of-maybe-introduction-to-probability.md |
| 8 | 69f0921a20bd2b7bb2b73018 | 69f0933520bd2b7bb2b7b5b9 | Predicting What Comes Next: Exploring Sequences and Progression | 8 | 174-198 | 25 | 6 | https://www.edzy.ai/cbse-class-9-mathematics-ganita-manjari-predicting-what-comes-next-exploring-sequences-and-progression | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-predicting-what-comes-next-exploring-sequences-and-progression.md |

## Topic Inventory

| No. | Topic ID | Topic |
| :--- | :--- | :--- |
| 1 | 69f188b20a98c1b78e26f9ec | Introduction |
| 2 | 69f188b20a98c1b78e26f9f1 | Settling In |
| 3 | 69f188b20a98c1b78e26f9f8 | The 2-D Cartesian Coordinate System |
| 4 | 69f188b20a98c1b78e26fa03 | Distance Between Two Points in the 2-D Plane |
| 5 | 69f188b20a98c1b78e26fa16 | Quadrants in the Cartesian Plane |
| 6 | 69f188000a98c1b78e26e7e1 | Introduction to Linear Polynomials |
| 7 | 69f188010a98c1b78e26e7ea | Linear Polynomials |
| 8 | 69f188010a98c1b78e26e7f5 | Exploring Linear Patterns |
| 9 | 69f188030a98c1b78e26e837 | Linear Growth and Linear Decay |
| 10 | 69f1880f0a98c1b78e26e85b | Linear Relationships |
| 11 | 69f1885e0a98c1b78e26e905 | Visualising Linear Relationships |
| 12 | 69f188b70a98c1b78e26fbbf | The Dawn of Mathematics: The Human Need to Count |
| 13 | 69f188b70a98c1b78e26fbc6 | The Revolution of Śhūnya: When Nothing Became Something |
| 14 | 69f188b70a98c1b78e26fbce | Integers: Expanding the Horizon |
| 15 | 69f188b70a98c1b78e26fbd7 | Filling the Spaces: Fractions and Rational Numbers |
| 16 | 69f188b70a98c1b78e26fbec | Irrational Numbers |
| 17 | 69f188b70a98c1b78e26fbfe | Real Numbers: Decimals and Cyclic Patterns |
| 18 | 69f188a10a98c1b78e26f11a | Introduction to Algebraic Identities |
| 19 | 69f188a10a98c1b78e26f14f | Visualising Identities |
| 20 | 69f188a10a98c1b78e26f17f | Factorisation of Algebraic Expressions Using Identities |
| 21 | 69f188a20a98c1b78e26f1aa | More Identities |
| 22 | 69f188a20a98c1b78e26f1c0 | Factorisation Using Algebra Tiles |
| 23 | 69f188a30a98c1b78e26f1ef | Factorisation Without Using Algebra Tiles |
| 24 | 69f188a30a98c1b78e26f20e | Finding New Identities |
| 25 | 69f188a30a98c1b78e26f230 | Simplifying Rational Expressions |
| 26 | 69f189250a98c1b78e272920 | Definitions of Circle and Chord |
| 27 | 69f189250a98c1b78e272925 | Symmetries of a Circle |
| 28 | 69f189250a98c1b78e27292a | How Many Circles? |
| 29 | 69f189250a98c1b78e272931 | Chords and the Angles They Subtend |
| 30 | 69f189250a98c1b78e272939 | Midpoints and Perpendicular Bisectors of Chords |
| 31 | 69f189250a98c1b78e272946 | Distance of Chords from the Centre |
| 32 | 69f189250a98c1b78e272952 | Angles Subtended by an Arc |
| 33 | 69f189260a98c1b78e272959 | Concyclicity of Points |
| 34 | 69f1893a0a98c1b78e272beb | Perimeter of a Shape |
| 35 | 69f1893b0a98c1b78e272c34 | Area of a Circle |
| 36 | 69f1893a0a98c1b78e272bf0 | Perimeter of a Circle — The C/D Ratio |
| 37 | 69f1893a0a98c1b78e272bfc | π Is Irrational |
| 38 | 69f1893a0a98c1b78e272c04 | Length of an Arc of a Circle |
| 39 | 69f1893a0a98c1b78e272c12 | Problems, Puzzles, and Paradoxes on Perimeter |
| 40 | 69f1893a0a98c1b78e272c17 | Area of a Rectangle |
| 41 | 69f1893a0a98c1b78e272c22 | Area of a Parallelogram |
| 42 | 69f1893a0a98c1b78e272c2d | Area of a Triangle |
| 43 | 69f188e80a98c1b78e2713b4 | What is Probability? |
| 44 | 69f188e80a98c1b78e2713bd | What is Randomness? |
| 45 | 69f188e80a98c1b78e2713c8 | The Probability Scale |
| 46 | 69f188e80a98c1b78e2713d8 | Measuring Probability Objectively |
| 47 | 69f188e80a98c1b78e2713e1 | Experimental Probability: Performing Observations or Experiments |
| 48 | 69f188e90a98c1b78e2713f4 | Theoretical Probability |
| 49 | 69f188e90a98c1b78e2713fe | Elements of Probability: Sample Spaces and Events |
| 50 | 69f1895f0a98c1b78e27411a | Introduction to Sequences |
| 51 | 69f1895f0a98c1b78e27411f | Explicit Rule for a Sequence |
| 52 | 69f1895f0a98c1b78e274126 | Recursive Rule for a Sequence |
| 53 | 69f1895f0a98c1b78e27412e | Arithmetic Progressions |
| 54 | 69f1895f0a98c1b78e274137 | Sum of the First n Natural Numbers |
| 55 | 69f1895f0a98c1b78e274142 | Geometric Progressions |

## Related OKF Entities

| Entity Type | Title | Markdown URL |
| :--- | :--- | :--- |
| Class | Class 9 | https://www.edzy.ai/okf/class/cbse-class-9.md |
| Book | Ganita Manjari | https://www.edzy.ai/okf/book/cbse-class-9-mathematics-ganita-manjari.md |
| Chapter | Orienting Yourself: The Use of Coordinates | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-orienting-yourself-the-use-of-coordinates.md |
| Chapter | Introduction to Linear Polynomials | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-introduction-to-linear-polynomials.md |
| Chapter | The World of Numbers | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-the-world-of-numbers.md |
| Chapter | Exploring Algebraic Identities | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-exploring-algebraic-identities.md |
| Chapter | I’m Up and Down, and Round and Round | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-im-up-and-down-and-round-and-round.md |
| Chapter | Measuring Space: Perimeter and Area | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-measuring-space-perimeter-and-area.md |
| Chapter | The Mathematics of Maybe: Introduction to Probability | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-the-mathematics-of-maybe-introduction-to-probability.md |
| Chapter | Predicting What Comes Next: Exploring Sequences and Progression | https://www.edzy.ai/okf/chapter/cbse-class-9-mathematics-ganita-manjari-predicting-what-comes-next-exploring-sequences-and-progression.md |

## Source Attribution

| Field | Value |
| :--- | :--- |
| Source | Edzy |
| Reference Type | examSubject |
| Reference ID | 66ab5c44543b6f461d7a9cec |
| Subject ID | 66ab5c44543b6f461d7a9cec |
| Canonical URL | https://www.edzy.ai/cbse-class-9-mathematics |
| Markdown URL | https://www.edzy.ai/okf/subject/cbse-class-9-mathematics.md |
| Last Updated | 2026-06-25 |