mathematics

This subject covers units such as geometry, algebra, arithmetic and, statistics and probability

Arithmetic contains chapter Number Systems

Arithmetic

Algebra covers chapters such as Polynomials and Linear Equations in Two Variables

Algebra

Geometry covers chapters such as Circles, Triangles, Quadrilaterals, Coordinate Geometry, Heron's Formula, Lines and Angles, Surface Areas and Volumes and, Introduction to Euclid's Geometry

Geometry

Statistics and Probability contains chapter Statistics

Statistics and Probability

Mathematics Textbook of Competency Based Questions for Class IX

Xact Mathematics

All in One Mathematics

THINK ABOVE AND BEYOND  MATHEMATICS PRACTICE BOOKS

MATHEMATICS

CBSE Syllabus Standard Mathematics for Class IX

Secondary School Mathematics FOR CLASS 9

Mathematics Class 9

NCERT Exemplar Mathematics - Class 9

Full Marks Mathematics 9

MATHEMATICS Textbook for Class IX

Activity Plus in Mathematics

The Volume of Hollow Solids: Cylinder and Sphere

Equal Arcs

AAS Criteria for Congruence of Triangles: Example

Converse of Consecutive Interior Angles Theorem

Parallelograms Formed by Four Points

Area of a Triangle by Heron's Formula

Introduction to Non-euclidean Geometry

Euclid’s Fifth Postulate and the Equivalent

Problem Based on Midpoint Theorem

Converse of Midpoint Theorem

Proof of Midpoint Theorem

Midpoint Theorem

Factorisation Using Difference of Two Squares

Factorisation by Algebraic Identities: Illustration 2

Factorisation by Algebraic Identities: Illustration 1

Factorisation Using Difference of Two Squares: Example

Illustration Based on the SAS Criterion

Factorisation: (a³ + b³) and (a³ – b³)

Expansion of (a + b)^3

Expansion of (a + b + c)²

Perfect Square Polynomial: Illustration 3

Perfect Square Polynomial: Illustration 2

Perfect Square Polynomial: Illustration 1

Perfect Square Polynomial

Factorisation of Perfect Square Trinomial

Factorisation of Polynomials: Illustration 1

Factor Theorem: Illustration

Geometrical Meaning of the Zeroes of a Polynomial

Zeros of a Polynomial

Exponents and Surds

Fractions to Decimals and Decimals to Fractions

Irrational Numbers: Geometrical Representation

Non-terminating Non-recurring Decimals

Application of (a²-b²)

Introduction to Polynomials

Numerator and Denominator of a Rational Number

SSS Criterion for Congruence

Criteria for Congruence of Triangles

Solving a Linear Equation in One Variable

Practical Application of Equation and Its Solution

Closure and Commutative Properties of Real Numbers

Interpretation of a Bar Graph

Basics of Bar Graph

Introduction to Graphs

Integers : Introduction

Coordinates of Different Quadrants

Quadrants in the Cartesian System

History of Coordinate Geometry

Relation of Two Polynomials With Their HCF and LCM

HCF of Polynomials

Recurring Decimals

Frequency Polygon and Frequency Distribution Table

Understanding Frequency Polygon

Volume of Cone and Sphere

Volume of Sphere

Volume of Cone:Illustration

Volume of a Cone

Surface Area of Hemisphere

Surface Area of a Sphere

Total Surface Area of a Cone

Curved Surface Area of a Cone: Examples

Curved Surface Area of a Cone

Cyclic Quadrilaterals

Congruent Chords

Angle Subtended by the Minor Arc at the Centre

Application of Central Angle Theorem

Angle Subtended by an Arc on the Circle

Angle Subtended by Two Minor Arcs

Angle Subtended by an Arc of a Circle

Congruent and Parallel Chords of a Circle

Chords Equidistant From the Centre: Theorem

Equal Chords and Their Distances From the Centre

Concyclic Points

Distance Between Parallel Chords 

Perpendicular Distance of a Chord From the Centre

Perpendicular Bisector of a Chord of a Circle

Perpendicular From Centre to Chord

Introduction to the Apollonius Theorem

Applications of SSS Criteria of Parallelogram

Application of SSS Criteria of Triangle

RHS Criterion for Congruence

Understand SSS Congruence Criteria

Proof for Properties of Isosceles Triangle

Properties of Isosceles Triangle

Congruent Triangle and Related Terminologies

Congruence of Triangles

Transitive Property of Parallel Lines

Theorems to Prove That Given Lines are Parallel

Vertically Opposite Angles

Understanding Supplementary Angles

Differences in Linear Pair and Supplementary Angles

Concurrent Lines

Different Types of Angles

Interior of an Angle

Euclid's Postulate of a Plane

Euclid's Axioms and Postulates

Solution of Pair of Linear Equations in 2 Variables

Solution of Linear Equations in Two Variables

Linear Equation in Two Variables

This chapter covers topics, such as, Basic Number Systems, Exponents and Surds, Irrational Numbers, Operations on Real Numbers & Real Numbers and their Decimal Expansions etc.

Number Systems

This chapter covers topics, such as, Area of Triangle Using Base and Height, Area of Triangle Using Heron's Formula & Area of Quadrilateral Using Heron's Formula etc.

Heron's Formula

This chapter covers topics, such as, Presentation of Data, Graphical Representation of Data, Measures of Central Tendency & Collection of Data etc.

Statistics

This chapter covers topics, such as, Volume of a Cylinder, Volume of a Sphere, Volume of a Cuboid & Surface Area of a Cuboid and a Cube etc.

Surface Areas and Volumes

This chapter covers topics, such as, Zeros of a Polynomial, Polynomials in One Variable, Remainder Theorem, Algebraic Identities & Factorisation of Polynomials etc.

Polynomials

This chapter covers topics, such as, Equations of Lines Parallel to x-axis and y-axis, Solution of a Linear Equation, Graph of a Linear Equation in Two Variables & Linear Equations etc.

Linear Equations in Two Variables

This chapter covers topics, such as, Congruence of Triangles, Properties of a Triangle, Inequalities in a Triangle, Criteria for Congruence of Triangles & RHS and SSS Criteria for Congruence etc.

Triangles

This chapter covers topics, such as, Types of Quadrilaterals, Angle Sum Property of a Quadrilateral, Properties of a Parallelogram & The Mid-point Theorem etc.

Quadrilaterals

This chapter covers topics, such as, Angle Sum Property of a Triangle, Pairs of Angles, Lines Parallel to the Same Line, Parallel Lines and a Transversal, Basic Terms for Angles between Lines & Intersecting Lines and Non-intersecting Lines etc.

Lines and Angles

This chapter covers topics, such as, Equivalent Versions of Euclid's Fifth Postulate, Euclid's Definitions & Axioms and Postulates etc.

Introduction to Euclid's Geometry

This chapter covers topics, such as, Circles and its Related Terms, Equal Chords and their Distances from the Centre, Cyclic Quadrilaterals & Perpendicular from the Centre to a Chord etc.

Circles

This chapter covers topics, such as, Introduction to Coordinate Geometry, Plotting a Point in the Plane if Its Coordinates are Given & Cartesian System etc.

Coordinate Geometry

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