9th Mathematics 9th Mathematics Chapter 1: Number Systems → Chapter 2: Polynomials → Chapter 3: Coordinate Geometry → Chapter 4: Linear Equations in Two Variables → Chapter 5: Introduction to Euclid’s Geometry → Chapter 6: Lines and Angles → Chapter 7: Triangles → Chapter 8: Quadrilaterals → Chapter 9: Circles → Chapter 10: Heron’s Formula → Chapter 11: Surface Areas and Volumes → Chapter 12: Statistics → Did this chapter match your syllabus? 👍 Match 👎 Not Match