Class 9 Mathematics
Explore all math topics for Class 9. Choose your board below to see the relevant curriculum topics.
Indian Certificate of Secondary Education Topics
18 topics · 18 available now
Rational & Irrational Numbers
Distinguish between rational and irrational numbers and represent them on the number line.
Compound Interest
Solve advanced compound interest problems including growth, depreciation, and installments.
Expansions
Use standard algebraic identities to expand expressions and simplify complex products.
Factorization
Factorize polynomials using remainder theorem, factor theorem, and algebraic identities.
Simultaneous Linear Equations
Solve pairs of linear equations using substitution, elimination, and cross-multiplication methods.
Indices (Exponents)
Apply laws of indices to simplify expressions with fractional and negative exponents.
Logarithms
Understand logarithmic notation, laws of logarithms, and solve logarithmic equations.
Triangles
Study triangle properties including inequality, angle sum, exterior angle, and congruence criteria.
Mid-Point Theorem
Prove and apply the mid-point theorem and its converse in triangles and quadrilaterals.
Pythagoras Theorem
Prove the Pythagorean theorem and apply it to solve problems involving right triangles.
Rectilinear Figures
Study properties and theorems of parallelograms, rectangles, rhombuses, and squares.
Circles
Explore circle properties including chords, arcs, angles subtended, and cyclic quadrilaterals.
Statistics
Calculate mean, median, and mode for grouped and ungrouped data sets.
Probability
Compute probability of events using sample spaces and apply addition rule.
Trigonometric Ratios
Define sine, cosine, and tangent ratios and solve problems involving right triangles.
Constructions
Construct angle bisectors, perpendicular bisectors, and triangles under given conditions.
Area of Plane Figures
Calculate area of triangles using Heron's formula and area of quadrilaterals and polygons.
Surface Area & Volume
Find surface area and volume of cylinders, cones, spheres, and hemispheres.