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Notes Class 9 Maths Chapter 8 Quadrilaterals

Notes For All Chapters Maths Class 9 1. Quadrilateral: A plane figure bounded by four lines segment AB, BC, CD and DA is called a quadrilateral. The sum of the angles of a quadrilateral is 360°. 2. Various Types of Quadrilaterals (i) Parallelogram: A quadrilateral in which opposite sides are parallel is called parallelogram and it is written as […]

Notes Class 9 Maths Chapter 4 Linear Equations in Two Variables

Notes For All Chapters Maths Class 9 Linear Equations: Any equation which can be put in the form ax + by + c = 0, where a, b and c are real numbers and a and b are not both zero is called a linear equation in two variables. The solution of a linear equation is […]

Notes Class 9 Maths Chapter 3 Coordinate Geometry

Notes For All Chapters Maths Class 9 1. Cartesian System: The system used to describe the position of a point in a plane is called the cartesian system. In a cartesian system, there are two perpendicular lines and a point is located by referring them. The horizontal line XX’ is called X-axis and vertical line YY’ is […]

Notes Class 9 Maths Chapter 7 Triangles

Notes For All Chapters Maths Class 9 1. Triangle: A closed figure formed by three intersecting lines is called a triangle (‘Tri’ means ‘three’). A triangle has three sides, three angles and three vertices. e.g., In triangle ABC, denoted as ∆ABC. AB, BC, CA are the three sides, ∠A, ∠B, ∠C are the three angles and A, […]

Notes Class 9 Maths Chapter 5 Introduction to Euclid’s Geometry

Notes For All Chapters Maths Class 9 1. Axioms or Postulates: Axioms or postulates are the assumptions which are obvious universal truths. They are not proved. Mainly postulates are used for especially geometry and axioms are used for especially algebra. 2. Theorems: Theorems are statements which are proved using ‘ definitions, axioms, previously proved statements and deductive reasoning. 3. Euclid’s […]

Notes Class 10 Maths CBSE PDF Dwonload

Chapter 1 Real Numbers Class 10 Notes Chapter 2 Polynomials Class 10 Notes Chapter 3 Pair of Linear equations in Two Variables Class 10 Notes Chapter 4 Quadratic Equations Class 10 Notes Chapter 5 Arithmetic Progressions Class 10 Notes Chapter 6 Triangles Class 10 Notes Chapter 7 Coordinate Geometry Class 10 Notes Chapter 8 Introduction to Trigonometry Class 10 Notes Chapter 9 Some Applications of Trigonometry […]

Notes Class 10 Maths Chapter 10 Circles

Notes For All Chapters Maths Class 10 CBSE Circle: A circle is a collection of all points in a plane which are at a constant distance from a fixed point. Centre: The fixed point is called the centre. Radius: The constant distance from the centre is called the radius. Chord: A line segment joining any two points on a […]

Notes Class 11 Maths CBSE

Sets Notes Chapter 1 Maths Class 11 Relations and Functions Notes Chapter 2 Maths Class 11 Trigonometric Functions Notes Chapter 3 Maths Class 11 Complex Numbers and Quadratic Equations Notes Chapter 4 Maths Class 11 Linear Inequalities Notes Chapter 5 Maths Class 11 Permutations and Combinations Notes Chapter 6 Maths Class 11 Binomial Theorem Notes […]

Notes Class 11 Maths Chapter 14 Mathematical Reasoning

Notes For All Chapters Maths Class 11 Statements A statement is a sentence which is either true or false, but not both simultaneously. Note: No sentence can be called a statement if It is an exclamation. It is an order or request. It is a question. Simple Statements A statement is called simple if it […]