Question 519327
I have a round tank that is 114in round by 40in tall how many gallons does it hold?
:
Find the radius from the circumference (114" around)
{{{2*pi*r = 114}}} 
r = {{{114/(2*pi)}}}
r = 18.14366" is the radius
:
Find the vol: {{{V = pi*r^2*h}}}
:
{{{V = pi*18.14366^2*40}}}
V = 41,367.55 cu/inches
:
Convert cu/in to gallons
41367.55 * 4.329(10^-3) = 179.1 gallons