2014 GED® Test Resources
Mathematics Formula Sheet & Explanation The 2014 GED® Mathematical Reasoning test contains a formula sheet, which displays formulas relating to geometric measurement and certain algebra concepts. Formulas are provided to testMathematics Formula Sheet takers so that they may focus on application, rather than the memorization, of formulas. Area of a:
A = lw
A = bh
A = bh
A = πr
! ! !
A = h(b1 + b2) !
Perimeter of a: square rectangle triangle Circumference of a circle
P = 4s P = 2l + 2w P = s1 + s2 + s3 C = 2πr OR C = πd; π ≈ 3.14
Surface area and volume of a: rectangular prism
SA = 2lw + 2lh + 2wh
V = lwh
SA = ph + 2B
V = Bh
SA = 2πrh + 2πr !
SA = ps + B !
SA = πrs + πr
SA = 4πr
V = πr h !
V = Bh 2
V = πr h ! !
V = πr
(p = perimeter of base with area B; π ≈ 3.14)
mean is equal to the total of the values of a data set, divided by the number of elements in the data set
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 = ax + bx + c
quadratic formula Pythagorean theorem
−! ± ! ! − 4!" 2! 2 2 2 a +b =c !=
I = Prt (I = interest, P = principal, r = rate, t = time)
d = rt
total cost = (number of units) × (price per unit)
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