Mathematics (Class 9) Study Materials

Natural, whole, integers, rational, irrational numbers; decimal expansions and number line.

Definition, degree, zeroes, remainder theorem, factor theorem, and factorisation.

Cartesian plane, plotting points, and quadrants.

Solution of a linear equation, graph of a linear equation, and examples.

Euclid's definitions, axioms, postulates, and basic theorems.

Types of angles, intersecting lines, parallel lines, and transversals.

Congruence criteria (SAS, ASA, SSS, RHS), properties of triangles, and inequalities.

Properties of parallelograms, rectangle, rhombus, square, and the midpoint theorem.

Circle properties — chords, arcs, angles subtended, and cyclic quadrilaterals.

Surface area and volume of cube, cuboid, cone, cylinder, and sphere.

Data collection, presentation (bar graphs, histograms), and measures of central tendency.

Basic probability concepts, experimental probability, and simple problems.