Class 9 Mathematics
The foundations for board Maths — real numbers, polynomials, geometry and statistics, made visual.
All 12 chapters are complete — notes, an interactive lab where one fits, a practice quiz and worked NCERT solutions & PYQs. Class 9 Science is complete too — the whole board syllabus, interactive-first.
Number systems
Number Systems
4 resourcesRational and irrational numbers, real numbers on the number line, and laws of exponents.
Algebra
Polynomials
4 resourcesLinear, quadratic and cubic polynomials, zeroes, and the remainder & factor theorems.
Linear Equations in Two Variables
5 resourcesWriting and graphing a linear equation in two variables — every solution is a point on a line.
Geometry
Coordinate Geometry
4 resourcesThe Cartesian plane — plotting points and reading their coordinates.
Introduction to Euclid's Geometry
4 resourcesEuclid's axioms and postulates — the logical foundations geometry is built on.
Lines and Angles
4 resourcesAngles made by a transversal, linear pairs, and the angle-sum property of a triangle.
Triangles
4 resourcesCongruence of triangles — the SSS, SAS, ASA and RHS rules, and their proofs.
Circles
4 resourcesChords, arcs and angles in a circle, and the cyclic-quadrilateral properties.
Mensuration
Heron's Formula
4 resourcesFinding the area of a triangle from its three sides alone — no height needed.
Surface Areas and Volumes
4 resourcesSurface area and volume of a cube, cuboid, cylinder, cone and sphere.