After the name of a geometric shape please

[mick101]

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.

[ozwinner]

What are the dimensions of the project?

Al :)

[Article99]

A cube + a triangular prism :?

[PaulS]

Mick its a trapezium.
see this page for the forumla
http://www.mathsteacher.com.au/year8/ch12_area/04_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

[ozwinner]

Try here.
http://www.blocklayer.com/Concrete-Calculator.aspx

Al :)

[mick101]

Mick its a trapezium.
see this page for the forumla
http://www.mathsteacher.com.au/year8/ch12_area/04_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.

[mick101]

Try here.
http://www.blocklayer.com/Concrete-Calculator.aspx

Al :)
Now thats a site worth book-marking :2tsup: Answered all...tks