2. Algebra
4.1. Solid Geometry
4.2. Coordinate Geometry
4.2.1. Points
4.2.2. Distance between Two Points
4.2.4. Slope
4.2.5. Equation of a Line
4.2.6. Circles and Parabolas
4.2.7. Area of Triangle
4.2.8. Area of Parallelogram
4.2.9. Centroid of a Triangle
5. Trigonometry
6. Functions