**Coordinate Geometry**** Formulas for Class 9 Maths Chapter ****3**

Are you looking for Coordinate Geometry formulas or important points that are required to understand Coordinate Geometry for class 9 maths Chapter 3? You are the right place to get all information about Coordinate Geometry Class 9 maths chapters 3. Coordinate Geometry formulas play a vital role in preparing you for the class 9 exam as well as higher studies. Coordinate Geometry formulas are very helpful for better scores in the exam. Check Coordinate Geometry formulas according to class 9:

\[ Equation\; of\; a \;line = ax + by + c = 0 \] |

\[ Equation\; of\; a \;circle = x^2 + y^2 = r^2 \] Here ‘\(r \)’ is the radius of the circle |

\[ Equation\; of \;a \;parabola = y^2 = 4ax \] |

\[ Equation\; of \;an\; ellipse = \frac{{x^2 }}{{a^2 }} + \frac{{y^2 }}{{b^2 }} = 1 \] |

\[ Equation\; of\; hyperbola = \frac{{x^2 }}{{a^2 }} – \frac{{y^2 }}{{b^2 }} = 1 \] |

\[ Distance\; formula\; D = \sqrt {\begin{bmatrix}{\left( {x_2 – x_1 } \right)^2 } +\\ {\left( {y_2 – y_1 } \right)^2 }\end{bmatrix}} \] |

\[ Angle \;between\; two\; lines\; \theta = \tan ^{ – 1} \left( {\frac{{m_2 – m_1 }}{{1 + m_1 m_2 }}} \right) \] |

#### Summary of Coordinate Geometry

We have shared very important formulas for Coordinate Geometry which helps to score in the class 9 exams. If you have any questions and doubts related to Coordinate Geometry please let me know through comment or mail as well as social media. When you understand the formulas behind each Coordinate Geometry topics then it would be easier to solve the most complex problems related to a Coordinate Geometry too.

#### Class 9 Maths Formulas By Chapters

- Chapter 2 – Polynomials
- Chapter 3 – Coordinate Geometry
- Chapter 7 – Triangles
- Chapter 8 – Quadrilaterals
- Chapter 9 – Areas of Parallelograms and Triangles
- Chapter 10 – Circles
- Chapter 12 – Heron’s Formula
- Chapter 13 – Surface Areas and Volumes
- Chapter 14 – Statistics
- Chapter 15 – Probability

#### NCERT Solutions For Class 9 Maths by Chapters

- Chapter 1 – Number Systems
- Chapter 2 – Polynomials
- Chapter 3 – Coordinate Geometry
- Chapter 4 – Linear Equations in Two Variables
- Chapter 5 – Introduction to Euclids Geometry
- Chapter 6 – Lines and Angles
- Chapter 7 – Triangles
- Chapter 8 – Quadrilaterals
- Chapter 9 – Areas of Parallelograms and Triangles
- Chapter 10 – Circles
- Chapter 11 – Constructions
- Chapter 12 – Heron’s Formula
- Chapter 13 – Surface Areas and Volumes
- Chapter 14 – Statistics
- Chapter 15 – Probability