NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry


NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry-

This chapter introduces some basic concepts of coordinate geometry. We will study more about this topic in higher classes. Coordinate geometry was initially developed by the Mathematician René  Déscartes and French philosopher. There are 3 exercises with 6 questions in this chapter. The NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry are prepared and solved by our maths experts to help students in their preparation and also to score well in the CBSE final examination of class 9 Maths. These NCERT solutions are the detailed explanation of each and every problem of chapter 3 “Coordinate Geometry” of the class 9 Maths Textbook.

Coordinate geometry is an interesting chapter where students get to learn about the position of an object in a plane, the coordinates of the cartesian plane and so on. For example, ”Imagine a situation where Ramesh know only the street number of his friend’s house. Would it be easy for Ramesh to find his friends house, or would it be easier if he had both the street number and the house number?” There are many other situations in real life, in which to find a point we might be required to describe its position with reference to more than one line. In NCERT Class 9 Maths Chapter 3 Coordinate Geometry, we will learn the concept of the cartesian plane, notations, name and other terms associated with the coordinate plane and also learned to plot the point in XY-plane.

Example: Plot the following ordered pairs (x, y) of numbers as points in the Cartesian plane. Use the scale 1cm = 1 unit on the axes.


-3        0    -1     4



7 -3.5    -3     4


Solution:  The pairs of numbers given in the table can be represented by the points (-3, 7), (0, -3.5), (-1, -3), (4, 4) and (2, -3). The locations of the points are shown by dots in Fig.3.17.

                          COORDINATE GEOMETRY Example 4

Topics of NCERT Grade 9 Maths Chapter 3 Coordinate Geometry-

3.1 Introduction  

3.2 Cartesian System

3.3 Plotting a Point in the Plane if its Coordinates are given

3.4 Summary

The complete Solutions of NCERT Class 9 Mathematics Chapter 3 is provided below:


NCERT Solutions for Class 9 Maths - Chapter Wise

Chapter No.

Chapter Name

Chapter 1

Number Systems

Chapter 2


Chapter 4

Linear Equations In Two Variables

Chapter 5

Introduction to Euclid's Geometry

Chapter 6

Lines And Angles

Chapter 7


Chapter 8


Chapter 9

Areas of Parallelograms and Triangles

Chapter 10


Chapter 11


Chapter 12

Heron’s Formula

Chapter 13

Surface Areas and Volumes

Chapter 14


Chapter 15



NCERT Solutions for Class 9 - Subject Wise

NCERT Solutions for Class 9 Maths
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