a = area,
b = base, c = circumference
d = diameter, h = height,
l = length
r = radius, w = width, pi
= 3.1416
Area =
pi x r sq.
Circumference = pi x d OR
2 pi x r
Diameter = c / pi
Radius = c / 2 pi
Sphere
Rectangle
or Square
Circumference
= 3.8978 x (cube root of
volume)
Diameter = 1.2407 x (cube
root of volume)
Diameter = 0.56419 x (square
root of surface)
Surface area = c x d
Volume = 0.1667(surface
area) x d
