Mathematics

Embibe Big Book is an AI-powered comprehensive curriculum for Mathematics Grade 9. It consists of the best questions from dozens of most popular books in the country.

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, Constructions, Heron's Formula, Lines and Angles, Surface Areas and Volumes, Introduction to Euclid's Geometry and, Area of Parallelogram and Triangles

Geometry

Statistics and Probability covers chapters such as Probability and Statistics

Statistics and Probability

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MATHEMATICS Textbook for Class IX

Activity Plus in Mathematics

Area of Quadrilateral Using Heron's Formula

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

Examples of Area of Triangles

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

Parallel & Transversal Lines: Illustration

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

Application of the Remainder Theorem: Example 2

Application of the Remainder Theorem: Example 1

Factor Theorem: Illustration

Remainder Theorem and Factor Theorem

Dividing Polynomial by a Polynomial

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

Area of the Four Walls

Numerator and Denominator of a Rational Number

Criteria for Congruence of Triangles

Triangle Inequality Theorem

What Are Transversal Lines?

Intersecting Lines and Point of Intersection

Illustration on Solving the Equation

Solving a Linear Equation in One Variable

Practical Application of Equation and Its Solution

Closure and Commutative Properties of Real Numbers

Area of a Rectangle: Illustration

Area of Closed Figures

Drawing a Bar Graph

Interpretation of a Bar Graph

Basics of Bar Graph

Introduction to Data Handling

Organising Data and Frequency of Data

Basics of Data

Integers : Introduction

Ordered Pair Corresponding to a Point

Coordinates of Different Quadrants

Quadrants in the Cartesian System

Introduction to Probability

Introduction to Experimental Probability

Mode of Data

Median of Ungrouped Data

Problem on Finding Corrected Mean

Illustration of Mean of Ungrouped Data

Arithmetic Mean of the Data

Frequency Polygon and Frequency Distribution Table

Understanding Frequency Polygon

Understanding Raw Data

Introduction to Statistics

Volume of Cone and Sphere

Volume of Sphere

Volume of Cone:Illustration

Comparing the Volumes of Two Cylinders

Volume of a Cylinder When Radius is Doubled

Introduction to the Volume of a Cylinder

Practical Applications of Volume of Solids

Volume of Cubes and Cuboids: Problems

Surface Area of Hemisphere

Surface Area of a Sphere

Total Surface Area of a Cone

Curved Surface Area of a Cone

Introduction to Area of a Cylinder

Surface Area of a Cuboid: Example

Lateral Surface Area of a Cuboid: Example

Three Dimensional Shapes

Construction of Triangle When Base Angles and Perimeter Is Given

Construction of Triangle Given Difference of Two Sides

Constructing an Angle Congruent to a Given Angle

Construction of Angles 90º and 45º

To Construct Angle Bisector and an Angle of 30º

Perpendicular Bisector Theorem

Construction of Perpendicular Bisector of a Line Segment

Construction of Angle Bisector

Cyclic Quadrilaterals

Congruent Chords

Illustration on Arcs and Chords of a Circle

Angle Subtended by the Minor Arc at the Centre

Application of Central Angle Theorem

Angle Subtended by an Arc on the Circle

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, Presentation of Data, Graphical Representation of Data, Measures of Central Tendency & Collection of Data etc.

Statistics

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, 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, 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, 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, Understanding Area of Plane Figures, Triangles on the Same Base and between the Same Parallels & Parallelograms on the Same Base and between the Same Parallels etc.

Area of Parallelogram and Triangles

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, Introduction to Coordinate Geometry, Plotting a Point in the Plane if Its Coordinates are Given & Cartesian System etc.

Coordinate Geometry

This chapter covers topics, such as, Probability - an Experimental Approach etc.

Probability

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, 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, Zeros of a Polynomial, Polynomials in One Variable, Remainder Theorem, Algebraic Identities & Factorisation of Polynomials etc.

Polynomials

This chapter covers topics, such as, Constructions of Triangles & Basic Constructions etc.

Constructions

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

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