Contents IX Maths IX Mathematics Chapter 1. Number Systems Chapter 2. Geometry Chapter 3. Algebra Chapter 4. Polynomials Chapter 5. Equation in two variables Chapter 6. Coordinate Geometry Chapter 7. Euclid Geometry Chapter 8. Heron's formula Chapter 9. Lines and Angles Chapter 10. Circles Chapter 11. Statistics Chapter 12. Areas and Surfaces Chapter 13. Quadrilaterals Chapter 14. Algebra
