Mathematics Formula Sheet & Explanation, Cheat Sheet of Mathematics

Download Mathematics Formula Sheet & Explanation and more Cheat Sheet Mathematics in PDF only on Docsity! Mathematics Formula Sheet & Explanation This cheat sheet displays formulas relating to geometric measurement and certain algebra concepts. Formulas are provided to test-takers so that they may focus on application, rather than the memorization, of formulas. Mathematics Formula Sheet   Area of a: square A = s2 rectangle A = lw parallelogram A = bh triangle A = ! !  bh trapezoid A = ! ! h(b1 + b2) circle A = πr2 Perimeter of a: square P = 4s rectangle P = 2l + 2w triangle P = s1 + s2 + s3 Circumference of a circle C = 2πr OR C = πd; π ≈ 3.14 Surface area and volume of a: rectangular prism SA = 2lw + 2lh + 2wh V = lwh right prism SA = ph + 2B V = Bh cylinder SA = 2πrh + 2πr2 V = πr2h pyramid SA = ! ! ps + B V = ! ! Bh cone SA = πrs + πr2 V = ! ! πr2h sphere SA = 4πr2 V = ! ! πr3 (p = perimeter of base with area B; π ≈ 3.14) Data mean mean is equal to the total of the values of a data set, divided by the number of elements in the data set median median is the middle value in an odd number of ordered values of a data set, or the mean of the two middle values in an even number of ordered values in a data set Algebra slope of a line ! = !! − !! !! − !! slope-intercept form of the equation of a line y = mx + b point-slope form of the equation of a line y – y1 = m(x – x1) standard form of a quadratic equation y = ax2 + bx + c quadratic formula ! = −! ± !! − 4!" 2! Pythagorean theorem a2 + b2 = c2 simple interest I = Prt (I = interest, P = principal, r = rate, t = time) distance formula d = rt total cost total cost = (number of units) × (price per unit)