looking from the ceiling down, the shape of the object is that of a || with the legs (the up rights?) being 6’ long and the back/bottom/ part being 8’ long, the entire shape would be 6’ tall and all dimensions are exterior
how many gallons would it hold?
It’s impossible to say exactly from the information you’ve given. We need the interior dimensions, or at least the thickness of the material it’s made from. Assuming the walls are of negligible thickness, the dimensions you’ve given appear to describe a rectangular solid 6 x 6 x 8 feet or 288 ft.[sup]3[/sup], which is about 2,154.5 gallons.
I forgot to say that the thickness of the legs would be 2’ and that the thickness/depth of the back would also be 2’
does that mess up your calculations?
it’s not meant to be a rectangle, it’s meant to be a U-shape, with squares instead of curves
Are we filling the interior of the U (imagine the U as a cup), or are we filling the U itself, like this:
XXXX XXXX
XXXX XXXX
XXXX XXXX
XXXX XXXX
XXXX XXXX
XXXXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
The Xs would be the filled part.
Errrr, you get the idea. Shoulda previewed…
we are filling the U part…um…the parts in the X
it’s an aquarium
Ok, based on this new information, it works out to 40 ft.[sup]3[/sup], or about 299.2 gallons, by my calculations.
Idiot. :smack: I know this wasn’t right as soon as I posted it. It should be 256 ft.[sup]3[/sup], or 1914.88 gallons.
hrm…
each leg would be 662 and the back part(not counting the parts the legs account for) would be 462
so 72*2 + 48
144+48 = 192 cubic feet
google translates that to…
192 (cubic feet) = 1,436.25973 US gallons
tho I’m not one to question you, one of us is completely and utterly wrong
Ok, I was reading it as 8 ft. deep, not 6. Your description was a tad confusing. Yes, 192 ft.[sup]3[/sup] is correct. But why did you ask us, if you could figure it out yourself? 
because I’m bored, lonely, and often wrong 
thanks for your assisitance