Class 9

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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 9 Number Systems

Chapter 2 Class 9 Polynomials

Chapter 3 Class 9 Coordinate Geometry

Chapter 4 Class 9 Linear Equations in Two Variables

Chapter 5 Class 9 Introduction to Euclid's Geometry

Chapter 6 Class 9 Lines and Angles

Chapter 7 Class 9 Triangles

Chapter 8 Class 9 Quadrilaterals

Chapter 9 Class 9 Areas of parallelograms and Triangles

Chapter 10 Class 9 Circles

Chapter 11 Class 9 Constructions

Chapter 12 Class 9 Herons Formula

Chapter 13 Class 9 Surface Areas and Volumes

Chapter 14 Class 9 Statistics

Chapter 15 Class 9 Probability

Important Questions for Exam - Class 9