# can someone check my math???

• 06-13-2003
Terminator
can someone check my math???
okay i have a box that is flat in the front, top, bottom and sides but the back is slanted (fits perfect in my trunk) anyway, can someone tell me the volume of my box. its made of 3/4" MDF. the dimensions are:

front height: 14"
bottom width: 14"
top width: 8"
front width: 27"
slant length: 15"
• 06-13-2003
fantomas
about 3.7814 cuft someone else should double check that though...
• 06-13-2003
Terminator
dammit. i got 2.41 ft^3 without taking off the 3/4" all around.

anyone else???
• 06-13-2003
fantomas
mine was after account for 3/4" mdf....and of course before driver displacement...
• 06-13-2003
Trixter
When using 3/4" these measurements become:
front height: 14" = 12.5
bottom width: 14" = 12.5
top width: 8" = 6.5
front width: 27" = 25.5

So let's do the rectangle first:
12.5 x 12.5 x 25.5 / 1728 = 2.31

And now the triangle: (w/ the base being 6 ((12.5 - 6.5 = 6))
6 x 12.5 x 25.5 / 2 / 1728 = .55

So:
2.31 + .55 = 2.86

Not what you guys got, but no matter how I do it, it's what I get.
• 06-13-2003
ShaunMac
In your post you listed 3 widths and NO depths?
Your box should have one width, not three.

If this drawing is correct. You have 1.75 cuft.
• 06-13-2003
fantomas
i took a second look....and my second attempt wasn't even close to the first.....i came out with... 1.82 cuft...ill try again later tonight and see what i get.....lol :banghead:
• 06-13-2003
Trixter
That is how I drew the box whan I figured it. I also got 1.75, but I checked it and I was wrong. look at my #'s above...
• 06-13-2003
Terminator
okay sorry its 27" DEEP
• 06-13-2003
ShaunMac
Quote:

Originally posted by Trixter
So let's do the rectangle first:
12.5 x 12.5 x 25.5 / 1728 = 2.31

A 12.5 x 12.5 x 25.5 rectangle doesn't fit into this box. The top is only 6.5" deep.
The rectangle should be 6.5 x 12.5 x 25.5, then add the triangle.
1.199(rectangle) + .55(triangle) = 1.74 cuft.
• 06-13-2003
Trixter
ahh yes...

so I was right the first time. I took the bottom # instead of the top.
• 06-13-2003
Terminator
okay thanks guys