Mathematics

CBSE Class 9

Number systems, polynomials, coordinate geometry, Euclid's geometry, triangles, circles, surface areas + volumes, statistics.

Official chapter index

The complete, authoritative chapter list for this subject is on the NCERT site. Use it as your primary source — Shishya links to it directly so you never read a stale copy.

Open NCERT chapter index ↗

15 chapters · CBSE Class 9

Chapters

12 chapters in the NCERT syllabus. Each chapter has its own page with the chapter overview, what to read (NCERT section refs), and a mastery quiz. AI- generated concept notes are being authored progressively.

1Number SystemsRational + irrational numbers, real number line, decimal expansions.
2PolynomialsPolynomial in one variable, remainder + factor theorems, factorisation.
3Coordinate GeometryCartesian system, plotting points.
4Linear Equations in Two VariablesSolutions, graphs, equations of lines parallel to axes.
5Introduction to Euclid's GeometryPostulates, axioms, theorems.
6Lines and AnglesAdjacent + linear pair + vertically opposite angles, parallel lines.
7TrianglesCongruence, properties, inequalities in triangles.
8QuadrilateralsAngle sum, properties of parallelogram + special quadrilaterals.
9CirclesChord properties, angle subtended, cyclic quadrilaterals.
10Heron's FormulaArea of triangle using semi-perimeter, applications to quadrilaterals.
11Surface Areas and VolumesCuboid, cube, cylinder, cone, sphere, hemisphere.
12StatisticsFrequency distribution, mean median mode, bar/histograms/frequency polygons.

Other subjects in Class 9

Science
English
Hindi Course A
Hindi Course B
Social Science

शिShishya Back

The expert in anything was once a beginner.— Helen Hayes