CBSE Notes class 9 in both hindi and english medium are very popular among cbse students due to well explained by diagrams by our experts. Mathematics class 9 in english-medium chapter-1. 1. Number Systems, Mathematics class 9 in english-medium chapter-2. 2. Polynomials, Mathematics class 9 in english-medium chapter-3. 3. Coordinate Geometry, Mathematics class 9 in english-medium chapter-4. 4. Linear Equation In Two Variables, Mathematics class 9 in english-medium chapter-5. 5. Introduction To Euclid’s Geometry, Mathematics class 9 in english-medium chapter-6. 6. Lines and Angles, Mathematics class 9 in english-medium chapter-7. 7. Triangles, Mathematics class 9 in english-medium chapter-8. 8. Quadrilaterals, Mathematics class 9 in english-medium chapter-9. 9. Area Parallelograms and Triangles, Mathematics class 9 in english-medium chapter-10. 10. Circles, Mathematics class 9 in english-medium chapter-11. 11. Constructions, Mathematics class 9 in english-medium chapter-12. 12. Herons Formula, Mathematics class 9 in english-medium chapter-13. 13. Surface Areas and Volumes, Mathematics class 9 in english-medium chapter-14. 14. Statistics, Mathematics class 9 in english-medium chapter-15. 15. Probability,