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CBSE Maths

Class 9th

Learn CBSE Maths for Class 9 for Free.

We also provide solutions of all chapters of NCERT with videos.

 

Topics include 

  1. Chapter 1 Number systems - Rational, Irrational, Real numbers, exponents, expressing in p/q, Finding rational number between two numbers , Number line
  2. Chapter 2 Polynomials- Degrees, zeroes of polynomial, Remainder Theorem, Factorization - Splitting middle term, Factor Theorem, Algebraic Identity 
  3. Chapter 3 Coordinate Geometry - Cartesian System, Abscissa Ordinate, quadrant, plotting (x,y) 
  4. Chapter 4 Linear Equations in Two Variables - Solution - Unique, Infinitely Many , Graph of linear equation in two variables, Forming equations, Equation of lines parallel to x-axis, y-axis
  5. Chapter 5 Introduction to Euclid's Geometry - Euclid's Definations, Axioms , Postulates,  Equivalent versions of Euclid's Fifth Postulate 
  6. Chapter 6 Lines and Angles - Complementary Angles, Supplementary Angles, Adjacent Angles, Vertically Opposite Angles, Linear pair, Alternate interior angles, interior angles on same side of transversal is supplementary, Sum of angles of a triangle is 180, Exterior Angle is sum of interior opposite angle, Theorems.
  7. Chapter 7 Triangles - Criteria of Congruence of Triangles - ASA, AAS, SSS, RHS, Angle opposite to equal sides of isosceles triangle are equal, Side opposite to greater angle is longer, Angle opposite to greater side is larger, Theorems
  8. Chapter 8 Quadrilaterals - Angle sum property of quadrilateral, Properties of Paralleogram, Theorems, Conditions for quadrilateral to be a parallelogram, Mid-point theorem
  9. Chapter 9 Areas of parallelograms and triangles - Figures on the same base and between the same parallels, 
  10. Chapter 10 Circles - Terms - Chord, arc, Sector, Segment, Angle subtended by chord at a point, perpendicular from centre to the chord, circle throught 3 points, equal chords and their distances from centre, angle subtended by an arc of the circle.
  11. Chapter 11 Constructions
  12. Chapter 12 Heron's Formula - Area of triangle by hero formula, Finding area of quadrilateral by heros formula
  13. Chapter 13 Surface Areas and Volumes - Curved , total surface area, volume of cuboid, cube, cylinder, right circular cone, sphere, hemisphere
  14. Chapter 14 Statistics - Primary, Secondary data, raw, ungrouped, grouped frequency distribution table, Graphical Representation - Bar graph, Histogram, Frequency Polygon, Mean, median, mode.
  15. Chapter 15 Probability - Experiment, Probability lies between 0 & 1, Empirical (Experimental) Probability of event is number of trials where E has happened by total number of trials.

 

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Chapter 1 Class 9th Number Systems


Chapter 2 Class 9th Polynomials


Chapter 3 Class 9th Coordinate Geometry


Chapter 4 Class 9th Linear Equations in Two Variables


Chapter 5 Class 9th Introduction to Euclid's Geometry


Chapter 6 Class 9th Lines and Angles


Chapter 7 Class 9th Triangles


Chapter 8 Class 9th Quadrilaterals


Chapter 9 Class 9th Areas of parallelograms and Triangles


Chapter 10 Class 9th Circles


Chapter 11 Class 9th Constructions


Chapter 12 Class 9th Herons Formula


Chapter 13 Class 9th Surface Areas and Volumes


Chapter 14 Class 9th Statistics


Chapter 15 Class 9th Probability


Important Questions for Exam - Class 9th