GMAT MATH FORMULAS FORMULAS, Cheat Sheet of Mathematics

Download GMAT MATH FORMULAS FORMULAS and more Cheat Sheet Mathematics in PDF only on Docsity! PREPSCHOLAR GMAT FORMULAS PDF GMAT Geometry Formulas AREA & PERIMETER FORMULAS Square: Area: (length)​2​ | Perimeter: 4(length) Rectangle: Area: length * width | Perimeter: 2(length) + 2(width) Parallelogram: Area: base * height | Perimeter: 2(base) + 2(height) Circles: Area: πr​2​ | Circumference of a circle: 2πr Triangle: Area: (1/2) base * height | Pythagorean Theorem (for determining the length of sides of a right triangle): a​2​ + b​2​ = c​2 Trapezoid: Area: (1/2) (a+c)/h where a and c are the length of the parallel sides CIRCLE FORMULAS Central Angle: 2(inscribed angle) Area of Sector: (x/360) *​ πr​2 VOLUME FORMULAS Cube: (length)​3 Rectangular prism: length * width * height Cylinder: πr​2​h Cone: (1/3) πr​2​h Pyramid: (1/3) base length * base width * height Sphere: (4/3)πr​3 GMAT Arithmetic Formulas ORDER OF OPERATIONS Parentheses – Exponents – Multiplication – Division – Addition – Subtraction (PEMDAS) NUMBER PROPERTIES (Positive Number) * (Positive Number) = (Positive Number) (Positive Number) * (Negative Number) = (Negative Number) (Negative Number) * (Negative Number) = (Positive Number) (Positive Number) / (Positive Number) = (Positive Number) (Positive Number) / (Negative Number) = (Negative Number) (Negative Number) / (Negative Number) = (Positive Number) (Odd Number) + (Odd Number) = (Even Number) (Odd Number) – (Odd Number) = (Even Number) (Odd Number) + (Even Number) = (Odd Number) (Odd Number) – (Even Number) = (Odd Number) (Even Number) + (Even Number) = (Even Number) (Even Number) – (Even Number) = (Even Number) (Odd Number) * (Odd Number) = (Odd Number) (Odd Number) * (Even Number) = (Even Number) (Even Number) * (Even Number) = (Even Number) PERMUTATIONS AND COMBINATIONS Permutation formula: ​n​P​r​ = n! / (n-r)! Combination formula: ​n​C​r​ = n! / (r!)(n-r)!