anonymous
  • anonymous
Volume of the attached figure? help would be amazing!!<3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
\[Vrec = (length)\times(width)\times(height)\]\[Vsquaqre pyram = {((lenght)^{2} \times height) \over 3} \] Vtotal = Vrec + Vsquarepyram
anonymous
  • anonymous
ops, typo, not a square base, rectangular base: instead of (lenght)^2 should be (length)*(width)

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dumbcow
  • dumbcow
25,225.2 cubic feet
anonymous
  • anonymous
Okay so I did 40*22*18=15,840 and then 40*22*18 ----------
anonymous
  • anonymous
___________ and I got 21,120 did i do something wrong? how did you come up with 3 that answer?
anonymous
  • anonymous
what is the height of the pyramid ?
dumbcow
  • dumbcow
its not a pyramid...its a triangular prism
anonymous
  • anonymous
yeah its a triangular prism and i don't know the height because its not listed
anonymous
  • anonymous
triangula prim.. pyramid ... same thing lol .. jk..
dumbcow
  • dumbcow
it's not the same thing
anonymous
  • anonymous
annd back to the problem how did you get your answer?
anonymous
  • anonymous
i know it's not.. i'm jk.. it's also another formula, sorry.
anonymous
  • anonymous
½ * a * b * h = Ah (area of the triangle)*(lenght of the prim / height of the prim)
dumbcow
  • dumbcow
no problem, its the same idea however the formulas are different
anonymous
  • anonymous
how do I find the area of the triangle if I don't have the height?
dumbcow
  • dumbcow
very good question use pythagorean theorem
anonymous
  • anonymous
to find the volume of the triangular prism, you need the area of the triangle. In order to find the area of the triangle we need the height. We can find it by: |\ x | \ 24 | \ |___\ (22/2) = 11 so 24^2 = x^2 + 11^2 x=21.3307
anonymous
  • anonymous
now that we found the height of the triangle we can find the volume of the triangular prims and add to the volume of the rect. prism. to get the total volume
anonymous
  • anonymous
oh okay I just forgot that we had the base. So i did 21.3307*22 all over 2 and I got 234.6377. then I did (234.6377)*(40)*(18)=169,939....is that wrong?
toxicsugar22
  • toxicsugar22
hi math mind can u help me after her
anonymous
  • anonymous
yup, i'll try suger.
anonymous
  • anonymous
okay so what did I do wrong?
toxicsugar22
  • toxicsugar22
thank you for the medal awsomness
anonymous
  • anonymous
haha no prob i give everyone a medal xD
anonymous
  • anonymous
alright so, Volume of Trian. prism = (.5)(22)(21.3307)(40) = 9385.51 Volume of Rect. prism = 22*18*40 = 15840 Total Volume = 9385.51 + 15840 = 25225.5
anonymous
  • anonymous
Thanks so much I saw what I did wrong!

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