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Math Problem: Volume

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harmonic
 
Reply Tue 13 Jan, 2004 12:47 am
I have a little problem here that I can't seem to work out... forgot the rules I guess... Rolling Eyes

How to figure the volume of:

-(Rectangle shaped) duct, 1.8125x1.25, 16.6875 long,

vs

- Pipe, 1.5625 ID, 16.6857 long.


hmm...
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ebrown p
 
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Reply Tue 13 Jan, 2004 07:12 am
The volume is just the cross-sectional area times the length.

For the rectangular duct volume is height * width * length

The area of a circle is (pi)*r*r

The 'r' is for radius. I am assuming that the "ID" is for "internal diameter" so divide this number by 2 to get the radius.

so the volume of the pipe is (pi)*r*r * length
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