Mathematics Formulas Flashcards
Mean
Mean = Sum of all Numbers / Total Number of Values
Median for an ODD set of Numbers
(n+1)/2
Median for an EVEN set of Numbers
{(n/2)th + (n/2 + 1)th} / 2
Mode
The Number with the Most repetations
Range
The Highest Number - The Lowest Number
Sin A
Opposite / Hypotenuse
Cos A
Adjacent / Hypotenuse
Tan A
Opposite / Adjacent
Radiant 0 Degrees
0
Radiant 90 Degrees
Pi/2
Radiant 180 Degrees
Pi
Radiant 270 Degrees
3(Pi)/2
Radiant 360 Degrees
2(Pi)
Triangle: Acute Angle
Less than 90 Degrees
Triangle: Right Angle
Exactly 90 Degrees
Triangle: Obtuse Angle
More than 90 Degrees
Triangle: Straight Angle
Exactly 180 Degrees
Triangle: Reflex Angle
More than 180 Degrees
Area of a Rectangle
A = L x W
Where, L = Length | W = Width
Area of a Square
A = S^2
Where, S = Side
Area of a Triangle
A = 1/2 x b x h
Where, b = Base | h = Height
Area of a Parallelogram
A = L x H
Where, L = Length | h = Height
Area of a Trapezoid
A = 1/2 x (B1 + B2) x h
Where, H = Height | B = Base
Area of a Circle
A = (Pi) x r^2
Where, (Pi) = 3.14 | r = Radius of the Circle
Circumference of a Circle
Circumference = 2 x (Pi) x r
Where, (Pi) = 3.14 | r = Radius
Volume of a Rectangle
V= L x W x H
Where, L = Length | W = Width | H = Height
Volume of a Cube
V = Side^3
Volume of a Cylinder
Volume = (Pi) x r^2 x h
Where, (Pi) = 3.14 | r = Radius | h = Height
Volume of a Sphere
Volume = 4/3 x (Pi) x r^3
Where, (Pi) = 3.14 | r = Radius
Volume of a Cone
V = 1/3 x (Pi) x r^2 x h
Where, (Pi) = 3.14 | r = Radius | h = Height
Volume of a Prism
V = 1/2 x b x h x L OR Area x Length
Where, b = Base | h = Height | L = Length
