1. Real numbers

2. Polynomials

4. Triangles

5. Trigonometry

9. Circles

11. Mensuration

11.1.1. Measuring Areas of Triangles

11.1.2.1. Area Between Two Rectangles

11.1.2.2. Area of a Quadrilateral

11.1.2.3. Area of a Parallelogram

11.1.2.4. Area of a Rhombus

11.1.2.5. Area of a Trapezium