# NCERT Maths Book Class 9

You are finally in Class 9. Now, only one year is left before you go to Class 10 and then on to the board exams. Are you feeling tensed? Don’t be! With the right amount of effort and planning, you can easily score high marks in this class. The syllabus of Class 9 is quite vast and it might almost seem impossible to complete. But with the proper plan and the right books, you can easily complete this syllabus. The CBSE NCERT 9th Class Maths book is just the book you are looking for. It is designed to help you understand the complicated concepts of Mathematics and pair it with loads of examples. With the NCERT books, you will not go wrong. However, it is always best to plot a strategy before tackling this difficult subject. Here is a chapter-wise summary of how you can deal with the chapters in the NCERT 9th class Maths book:

### Chapter 1: Number Systems

You will start your journey with Number Systems. The first chapter in the NCERT 9th class Maths book will deal with terminating and non-terminating decimals, rational numbers, square roots, powers and rational exponents and the Rationalization of Real numbers.

### Chapter 2: Polynomials

In Polynomials, you will learn the definitions of polynomials, coefficients, degrees etc. You will also come across the different types of polynomials like Linear, quadratic, binomials, trinomials, factor theorems, etc.

### Chapter 3: Coordinate Geometry

In Chapter 3 of the NCERT 9th class Maths book, you will be dealing with the concepts of the Cartesian plane, coordinates of a point in the XY plane, notations, abscissa and also, plotting a point in XY-plane.

### Chapter 4: Linear Equations in Two Variables

Chapter 4 will introduce you to the equation in two variables of the type ax+by+c=0. In this chapter, you will solve questions related to linear equations and also, plot linear equations on a graph.

### Chapter 5: Euclid’s Geometry

Chapter 5 will advance your knowledge in Geometry. Euclid's Geometry chapter will help you understand how common geometric shapes and terms are defined. It will also dive deep into the relationship between postulates, axioms and theorems.

### Chapter 6: Lines and Angles

Lines and Angles will help you understand a few theorems about parallel lines, transversals, interior angles etc., and how you can apply them to find proofs of different verification problems.

### Chapter 7: Triangles

Chapter 7 in the NCERT 9th class Maths book will study about the congruency of triangles and the rules of congruency. It will also acquaint you with more properties of triangles and about the inequalities in a triangle.

### Chapter 9: Areas of Parallelograms and Triangles

This is an important chapter in the NCERT 9th class Maths book. In this chapter, you will learn about the concepts of the areas of Parallelograms and Triangles and solve problems to find out the area of a region, parallelograms and triangles.

### Chapter 10: Circles

In Circles, you will learn about chords, equal chords, the angle subtended by an arc of a circle, cyclic quadrilaterals and several important theorems related to circles, quadrilaterals and triangles.

### Chapter 11: Constructions

In this chapter, you will learn about constructions of different angles using bisectors as well as the construction of triangles, all using a ruler and a compass.

### Chapter 12: Heron’s Formula

Heron’s Formula chapter will extend your knowledge in relation to the area of a triangle. By using Heron’s Formula, you will be solving problems to find the area of triangles and quadrilaterals.

### Chapter 13: Surface Areas and Volumes

In the previous classes, you have dealt with mensuration of 2-D figures. Chapter 13 in the NCERT 9th class Maths book, you will dive into problems to find out the volume and surface area of 3-D objects like cuboid, cubes, cylinders, spheres, etc.

### Chapter 14: Statistics

You have dealt with statistics in your previous classes. In this chapter, you will have to group data into tabular form and find the mean, mode and median. You will also have to draw data from histograms, pie charts or other visual representation of data.

### Chapter 15: Probability

The final chapter in the NCERT 9th class Maths book is based on finding the probability of favourable outcomes from a random event. In this chapter, you will be dealing with real-life problems, mostly related to cards and dice.