document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=350808>Question 350808</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An irrigation canal is 10 kilometers long and 2 meters deep. It is 4 meters wide at the top and 2 meters wide at the bottom. How many cubic meters of earth were excavated to make the canal? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #250782 by </B><A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><B>sudhanshu_kmr(1152)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=sudhanshu_kmr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=250782\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The cross section area of canal is a trapezium. <BR>\n" );
document.write( " Parallel sides are 2 and 4, height is 2 m.<BR>\n" );
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document.write( " area of this trapezium =  1/2 × (sum of parallel sides) × (distance between them)<BR>\n" );
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document.write( "                         = 1/2 * (2+4) * 2 <BR>\n" );
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document.write( "                         = 6  m sq.\r<BR>\n" );
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document.write( "volume  = 6 * 10000           (10 km = 10000 m)<BR>\n" );
document.write( "        = 60000 m cube.\r<BR>\n" );
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document.write( "so, 60000 cubic meters excavated. </SPAN>\n" );
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