document.write( "Question 1136787: A rectangular iron pipe has an external dimention 12cm and 10cm with the iron being 1cm thick. The mass of 1cm^3 of cast iron is 7.2g. Calculate the mass of 2-meter length of the pipe. \n" ); document.write( "
Algebra.Com's Answer #754627 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
IDK anyone who would not assume the cross-section is circular when you say \"pipe.\"
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\n" ); document.write( "Post it like this:
\n" ); document.write( "A rectangular pipe has a cross-section of 10 by 12 cms outside, and it's 1 cm thick.
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\n" ); document.write( "Makes it simple and understandable.
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\n" ); document.write( "Pipe ---> a round object.
\n" ); document.write( "You could have said \"a rectangular wave guide\" with dimensions. tho they are copper, not iron.
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