Math Formula Sheet

= = + +

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You will have access to a formula sheet on your High School Equivalency Exam However even with the formula tip sheet you will still need to know how and when to apply a formula Notes

bull π asymp 314 bull p = perimeter of base with area B bull I = interest P = principal r = rate and t = time

Area

A Square = s2 1

Triangle A = bh 2

Rectangle A = lw 1

Trapezoid A = h(b 2 1 + b2 )

Parallelogram A = bh Circle A = πr2

Perimeter

Square P 4s Triangle P s1 s2 s3

Rectangle P = 2l + 2w Circumference of a circle C = 2πr OR C = πd

Surface Area

Rectangular right prism SA = ph + 2B Cone SA = πrs + πr2

Cylinder SA = 2πrh + 2πr2 Sphere SA = 4πr2

1 Pyramid SA = ps + B

Volume

Rectangular right prism V = Bh 1

Cone V = πr2h 3

Cylinder V = πr2h 4 Sphere V = πr3 3

1 Pyramid V = Bh

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Math Formula Sheet

Algebra

y ySlope of a line m = 2minus 1

x2minus x1

Pythagorean theorem a2 + b2 = c2

Slope-intercept for of the equation of a line y mx b = + Simple interest I = Pr t

Point-slope form of the equation of a line y minus y1 = m(x minus x1 )

Distance Formula d = rt

Standard form of a quadratic equation y = ax2 + bx + c Total Cost (number of units)x ( price per unit)

minusb plusmn b2 minus 4ac Quadratic Formula x =

2a

Mean The 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

copy 2015 ICCB and CAIT i-pathwaysorg The GEDreg Mark is a registered trademark of the American Council on Education

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