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  1. 20th July 2007, 08:08 PM #1
    mick101
    mick101 is offline Member
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    Default After the name of a geometric shape please

    A square box with a sloped bottom much like a town council swiming pool.

    Im concreting & i need to work out my vol req. Basic square but sloped bottom..ie 320mm at one end & 140 mm at the other.(long story but sloping ground)

    Once i get the name of that shape.. im sure i can google the rest of the answer but i simply cant find its correct name.
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  2. 20th July 2007, 08:12 PM #2
    ozwinner
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    What are the dimensions of the project?

    Al
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  3. 20th July 2007, 08:12 PM #3
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    Article99
    Article99 is offline Young Bull
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    A cube + a triangular prism
    'What the mind of man can conceive, the hand of a toolmaker can achieve.'
    Owning a GPX250 and wanting a ZX10 is the single worst experience possible. -Aside from riding a BMW, I guess.
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  4. 20th July 2007, 08:14 PM #4
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    PaulS
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    Mick its a trapezium.
    see this page for the forumla
    http://www.mathsteacher.com.au/year8..._trap/trap.htm

    Imagine your swimming pool

    Vol = (depth at shallow end + depth at deep end) * .5 * length of pool * width of pool

    good luck
    Paul
    "Looking west with the land behind me as the sun tracks down to the sea, I have my bearings" Tim Winton
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  5. 20th July 2007, 08:15 PM #5
    ozwinner
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    Try here.
    http://www.blocklayer.com/Concrete-Calculator.aspx

    Al
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  6. 20th July 2007, 09:33 PM #6
    mick101
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    Quote Originally Posted by PaulS View Post
    Mick its a trapezium.
    see this page for the forumla
    http://www.mathsteacher.com.au/year8..._trap/trap.htm

    Imagine your swimming pool

    Vol = (depth at shallow end + depth at deep end) * .5 * length of pool * width of pool

    good luck
    Paul
    Tks..i did think of that as its one of the only shapes i know but i assumed a trapezium was 2 dimentional only.
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  7. 20th July 2007, 09:34 PM #7
    mick101
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    Quote Originally Posted by ozwinner View Post
    Try here.
    http://www.blocklayer.com/Concrete-Calculator.aspx

    Al
    Now thats a site worth book-marking Answered all...tks
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