![]() ![]() ![]() ![]() Chapter 8 Quadrilaterals - Angle sum property of quadrilateral, Properties of Paralleogram, Theorems, Conditions for quadrilateral to be a parallelogram, Mid-point theorem.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.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.Chapter 5 Introduction to Euclid's Geometry - Euclid's Definitions, Axioms, Postulates, Equivalent versions of Euclid's Fifth Postulate.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. ![]() Chapter 3 Coordinate Geometry - Cartesian System, Abscissa Ordinate, Quadrant, Plotting points (x,y).Chapter 2 Polynomials- Degrees, zeroes of polynomial, Remainder Theorem, Factorization - Splitting middle term, Factor Theorem, Algebraic Identity.Chapter 1 Number systems - What are Rational, Irrational, Real numbers, Law of Exponents, Expressing numbers in p/q form, Finding rational number between two numbers, Number line.All answers are solved step by step with videos of every question. Get NCERT solutions for Class 9 Maths free with videos of each and every exercise question and examples. Updated according to new NCERT - 2023-24 NCERT Books. ![]()
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