Area of a Triangle
(base x height)/2
Volume of a Pyramid
1/3 x base x height
Area of a trapezoid
[1/2(upper base + lower base)] x height
Area of a parallelogram
base x height
Fahrenheit to Degrees Rankine
degrees Fahrenheit + 459.67
Celsius to Rankine
(Celsius + 273.15) x 1.8
Density
Mass/Volume
Volume of a Cylinder
3.14 x (radius x radius) x height
Radius
diameter/2
Circumference
3.14 x diameter
1 cubic meter = ?Liters
1000
Area of an ellipse
3.14 x r1 x r2
Area of a Rhombus
1/2 (Diagonal1 x Diagonal2)
Degrees Kelvin from Celsius
Celsius + 273.15
Celsius from Delisle
100 - D x 2/3
Fahrenheit to Celsius
C = (f - 32) x 5/9
Surface area of a cuboid
2 x length + 2 x height + 2 x width
Mass
weight/gravitational acceleration
Interior angle of a regular polygon
180 (n-2)/n (n = number of sides)
Length of a circular arc
degrees of the angle x (3.14/180) x r
Prism Lateral Area
perimeter x height
Prism surface area
lateral area + 2 x area of base
Prism Volume
Area of Base x height
Surface area of a Cylinder
2 x (π x r² x h) + 2 x π x r x h