On 18 May, 16:10, "Jerry Beeler" <jerrybee...@[EMAIL PROTECTED]
> wrote:
> A cylindrical pipe has a radius of 100 inches and a length of 30 feet.
>
> The pipe was run under a road, but, due to an error it had to be removed
a=
nd
> dropped 18 inches below it's original position.
>
> What is the volume of the void that is left from the original position?
>
> Note: =A0This void has to be filled with $200/square yard material so I
ha=
ve
> to be accurate.
100 inches wide x 30 feet long x 18 inches deep
=3D 13 8/9 cubic yards,
cost is $2777.78 to the nearest cent.
Although the cross-section of the void is not
rectangular, every vertical strip of it is 18
inches from top to bottom, so width x height
gives the correct area.
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