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# NCERT Solutions for Class 9 Maths Chapter 3 Coordinate Geometry

The third chapter Coordinate Geometry begins with an activity for students. They are asked to locate their friend's house based on the number line system. Illustrations are used to describe the measurement of an object from where the point has been fixed. Further, the example of the seating plan has been used to relate it with Squares' concept. The Cartesian system introduced by Rene Descartes, the great French mathematician, has also been done. Both X and Y-axis have been explained in coordinated axes. The chapter ends with the Cartesian system of measuring both axes has been stated with the help of graphs and other equations.

• The chapter begins by describing the number system and its application in the measurement of distances.
• The basic concept of coordinate geometry was developed by the French mathematician Rene Descartes who developed the Cartesian system's point.
• The Cartesian system consists of the numerical plane and specific points that measure the distance between two perpendicular points.
• The graph is used to interpret the two coordinating lines of x and y-axis that cross each other.
• Each of four quadrants is formed by the intersection of the axes, and the quadrants are denoted by roman numerical.
• To measure the individual area of a quadrant, the areas are divided by a circle of four quadrants after which a solution can obtain the square of that particular quadrant.
• In the end, the chapter specifies that the points of each quadrant might be different but the coordinates of origin denoted by "O" remain the same at a fixed position.

 Also See NCERT Solutions For Class 9 Maths Chapter 1 Number System NCERT Solutions For Class 9 Maths Chapter 2 Polynomials NCERT Solutions For Class 9 Maths Chapter 4 The Linear Equations in Two Variables NCERT Solutions For Class 9 Maths Chapter 5 Introduction to Euclid’s Theory NCERT Solutions For Class 9 Maths Chapter 6 Lines and Angles NCERT Solutions For Class 9 Maths Chapter 7 Triangles NCERT Solutions For Class 9 Maths Chapter 8 Quadrilaterals NCERT Solutions For Class 9 Maths Chapter 9 The Areas of Parallelograms and Triangles NCERT Solutions For Class 9 Maths Chapter 10 Circles NCERT Solutions For Class 9 Maths Chapter 11 Constructions NCERT Solutions For Class 9 Maths Chapter 12 Heron’s Formula NCERT Solutions For Class 9 Maths Chapter 13 Surface Areas and Volumes NCERT Solutions For Class 9 Maths Chapter 14 Statistics NCERT Solutions For Class 9 Maths Chapter 15 Probability

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