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Class 9 · Maths

Chapters

Orienting Yourself: The Use of Coordinates

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✓ Quiz 4/4✓ Unit✓ Periodic✓ Exam

Chapter Overview & Introduction8/10 The 2-D Cartesian Coordinate System & Exercise Sets 1.1–1.29/10 Distance Between Two Points in the 2-D Plane9/10 End-of-Chapter Exercises8/10

Review · Topic 1

Introduction to Linear Polynomials

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✓ Quiz 5/5✓ Unit✓ Periodic✓ Exam

Introduction: Polynomials, Degree & Coefficients8/10 Linear Polynomials & Linear Patterns8/10 Linear Growth, Decay & Linear Relationships8/10 Visualising Linear Relationships9/10 End-of-Chapter Exercises9/10

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The World of Numbers

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✓ Quiz 5/5✓ Unit✓ Periodic✓ Exam

Natural Numbers, Zero (Śhūnya) & Integers9/10 Rational Numbers: Arithmetic, Number Line & Density9/10 Irrational Numbers: √2 Proof, √n Construction & π9/10 Real Numbers: Decimal Expansions & Cyclic Numbers10/10 Conclusion & End-of-Chapter Exercises10/10

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Exploring Algebraic Identities

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✓ Quiz 5/5✓ Unit✓ Periodic✓ Exam

Square Identities: (a ± b)², Visualising & Factorising9/10 (a + b + c)² and a² − b² Identities10/10 Factorising Quadratics: Algebra Tiles & Splitting the Middle Term9/10 Cube Identities & Simplifying Rational Expressions8/10 End-of-Chapter Exercises9/10

Review · Topic 1

I'm Up and Down, and Round and Round

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Quiz 2/5🔒 Unit🔒 Periodic🔒 Exam

Circles: Definitions, Symmetries & Circles Through Given Points8/10 Chords: Subtended Angles & Perpendicular Bisectors8/10 Distance of Chords from the CentreUp next 4Angles Subtended by an Arc & Concyclic Points 5End-of-Chapter Exercises

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Measuring Space: Perimeter and Area

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Quiz 0/5🔒 Unit🔒 Periodic🔒 Exam

Perimeter, the C/D Ratio (π) & Arc LengthUp next 2Area of Rectangles, Parallelograms & Triangles 3Heron's Formula, Brahmagupta's Formula & Squaring a Rectangle 4Area of a Circle & Sector 5End-of-Chapter Exercises

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The Mathematics of Maybe: Introduction to Probability

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Quiz 0/5🔒 Unit🔒 Periodic🔒 Exam

What is Probability? Randomness & the Probability ScaleUp next 2Experimental, Theoretical & Statistical Probability 3Sample Spaces & Events 4Tree Diagrams 5End-of-Chapter Exercises

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Predicting What Comes Next: Exploring Sequences and Progressions

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Quiz 0/5🔒 Unit🔒 Periodic🔒 Exam

Introduction to Sequences: Explicit & Recursive RulesUp next 2Arithmetic Progressions 3Sum of the First n Natural Numbers 4Geometric Progressions & Fractals 5End-of-Chapter Exercises

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Study this chapter

Ch 8 · Predicting What Comes Next: Exploring Sequences and Progressions

RRevisionKey pointsNotes & diagrams

NNCERTSolutionsEvery exercise

UUnit Test🔒 LockedQuizzes 0/5 at 80%