Punjab (PSEB)Class 9Subject library

Punjab (PSEB) Class 9 Mathematics

Chapter-wise notes, previous year papers, sample papers and Q&A for Punjab (PSEB) Class 9 mathematics — free, syllabus-aligned, exam-ready.

12 chapters~410 min read totalFree · printable

Chapters

12 chapters — sequenced for revision and exam prep.

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NCERT chapters — we haven't confirmed Punjab (PSEB)'s prescribed textbook

Several state boards have adopted NCERT books outright and others have not. We won't guess. Check the chapter names against your own textbook, and tell us if they differ.

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Number Systems

From counting cows to imaginary numbers — how mathematicians extended the number line over 4000 years. Class 9 Number Systems with rationals, irrationals, real numbers, decimal expansions, the number line, surds, rationalisation, and 30+ exam-style problems.

CBSE⏱ 45 minRead chapter

Polynomials

From counting apples to encoding all of algebra — polynomials are the words of mathematics. Class 9 Polynomials with one-variable polynomials, degree, zeros, the Remainder & Factor Theorems, identities for factorisation, and 25+ exam-style problems with full step-by-step solutions.

CBSE⏱ 45 minRead chapter

Coordinate Geometry

From Descartes' fly on the ceiling to plotting your own GPS — Class 9 Coordinate Geometry, taught the way a great teacher would. Cartesian plane, quadrants, plotting, reflections, distance along axes, real-world uses and 30+ worked problems.

CBSE⏱ 35 minRead chapter

Linear Equations in Two Variables

Every train timetable, every demand-and-supply curve, every flight path — they're all linear equations in two variables. Class 9 chapter on solutions, plotting, slope-intercept ideas, geometric meaning, axis-equations, and real-world applications with 25+ worked exam problems.

CBSE⏱ 40 minRead chapter

Introduction to Euclid's Geometry

How a Greek geometer in 300 BCE built all of geometry from five axioms and five postulates — and why it took 2000 years to spot the loophole in his fifth one. Class 9 introduction to deductive reasoning, Euclid's definitions, postulates, axioms, theorems, and 20+ worked exam problems.

CBSE⏱ 30 minRead chapter

Lines and Angles

Every triangle, every quadrilateral, every polygon — they're all just collections of lines and angles. This is the foundation chapter for the rest of Class 9 geometry. Vertically opposite angles, linear pairs, parallel-line angle pairs, the angle sum of a triangle — proved rigorously, with 25+ exam-style problems.

CBSE⏱ 40 minRead chapter

Triangles

The triangle is the strongest shape in nature and the most studied object in geometry. Class 9 chapter on congruence (SSS, SAS, ASA, AAS, RHS), isosceles triangle theorem, inequalities, and 25+ exam problems with full proofs.

CBSE⏱ 45 minRead chapter

Quadrilaterals

Most shapes you'll ever draw are quadrilaterals — a screen, a door, a phone, a notebook. Class 9 chapter on parallelograms, rectangles, rhombuses, squares, trapezia, plus the Mid-Point Theorem — all proved using triangle congruence. 25+ exam-style problems with full step-by-step solutions.

CBSE⏱ 40 minRead chapter

Circles

The circle is the most symmetric shape — and that symmetry produces a cascade of beautiful theorems. Class 9 chapter on chords, arcs, angles subtended, cyclic quadrilaterals — the foundation of trigonometry, calculus, and physics. 25+ exam problems with full step-by-step proofs.

CBSE⏱ 40 minRead chapter

Heron's Formula

How a 1st-century Greek engineer computed the area of any triangle from just its three sides — no height needed. The most useful single formula in surveying. Class 9 chapter with derivation, applications to quadrilaterals, and 20+ worked exam problems.

CBSE⏱ 25 minRead chapter

Surface Areas and Volumes

Formulas for the surface area and volume of cuboids, cubes, cylinders, cones, spheres and hemispheres — and how to mix and match them in composite-solid problems.

CBSE⏱ 14 minRead chapter

Statistics

Collecting and presenting data — frequency tables, bar graphs, histograms and frequency polygons. Plus mean, median and mode for ungrouped data.

CBSE⏱ 11 minRead chapter

Mathematics resources for Class 9

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Yes — every chapter note, worked example and PYQ for Punjab (PSEB) Class 9 Mathematics is free to read.

Not yet. Punjab (PSEB) Mathematics chapters are still being written, so this page shows the NCERT equivalent — good for the concepts, but chapter names and order will differ from your textbook.

Open the "Punjab (PSEB) Class 9 Mathematics PYQs" card below — it goes straight to the year-wise paper list filtered to this subject.

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Punjab (PSEB) Class 9 Mathematics