These are very useful maths formulas that serve as a quick reference. This includes topics: Algebra: List of Squares, Cubes, Fouths & fifths. List of Percentages, Fractions, Decimals. Logarithms. Exponents. Quadratic Equations. Trigonometry. Geometry. Area and Perimeter of Circle, Square, Rectangles, Parallelogram, Ring, Sector, Trapezoid, Equilateral Triangle.