# Class 9 Maths For Students

### Chapter 1 : Number Systems

Real Numbers? So you must be wondering, aren’t all figures real? Are there unreal numbers? Well, let us solve your difficulty right here. The easiest way to memorize is that if the number can be put on a number line, it is a real number. Let’s find out some more interesting theories about real numbers:

### Chapter 2: Polynomials

Polynomials are mathematical appearances with any number of variables and coefficients. Polynomials find purposes in various fields of Maths and Science. Polynomials have their own set of laws and rules for class 9 maths. In this chapter, we will learn everything about polynomial and their relationships.

### Chapter 3: Coordinate Geometry

When was the last time you asked for courses to reach somewhere? Don’t we all just use the GPS and navigating on our phones? So what if I told you, that we wouldn’t have these amazing tools without equal geometry! The grids of latitudes and longitudes we use for GPS are exclusively based on Coordinate Geometry.

### Chapter 4: Linear Equations in Two Variable

Linear equations are usually applied in our daily lives. You must have come across the famous mangoes and oranges puzzles. And do you know how to solve them? Well, in this section we will learn about what are and how to determine a pair of linear equations in two variables, as well as the density of equations.

### Chapter 5: Introduction To Euclid’s Geometry

Frustrated with words like Axioms, Theorems, and Conjectures? Want to apprehend what Geometry is? Here, we travel to aged Alexandria and meet one of the most famous humans in the history of the world, Euclid. Let us begin this journey of fitness and the history of mathematics and geometry.

### Chapter 6: Lines and Angles

Do you remember what was the first thing you did with a streak when you were a kid? Surely drawing irregular lines, isn’t it? Let us try understanding the concept of lines in math. In this lesson, we will also learn what is an edge and its types. So let us inquire about lines and angles altogether.

### Chapter 7: Triangles

How do you think the scientists marked the height of Mount Everest? Do you think they went about it with a tape action? Well of course not. They probably used many engaging concepts in Geometry. Let’s learn here some of these fascinating concepts about Triangles…

The first things that we tend to read regarding objects that we see are color and shape. In many instances, we explain the function of certain objects by examining their shapes. Thus, it is important to recognize elementary shapes. Let’s study the topics in this division.

### Chapter 9: Constructions

Geometry is the study of stamps and sizes and applicable positions and proportions of objects. Constructions of states are a tricky but very essential part of Geometry. It is difficult to explain because construction is done step by step. If you miss or do any of the actions wrong, you end up with something nebulous.

### Chapter 10: Surface Areas and Volumes

We exist in a three-dimensional world. The room you are sitting in can be defined by these dimensions. A football would ultimately burst if you forcefully try to pump in more air than wanted. The dimensions and sizes of these objects can be included by studying their Surface Area and Volume.

### Chapter 11: Statistics

Statistics is throughout you. Did you know there are so many daily things in your life that are made clear and exciting by statistics? Without statistics, you wouldn’t have all the stats on your favorite soccer payer, or track your journey in your exams, or have weather forecasts, etc.

### Chapter 12: Probability

Did you know the origins of Promise can be linked to gambling? The theory of probability may have been created to help gamblers, but now it assists many of our normal activities. The chances of your school team winning the competition, the possibility of rain on a given day, are all statements of probability.