document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1049723>Question 1049723</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ref. Questions 1049479, 1049528:\r<BR>\n" );
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document.write( "A hexagonal steel bar is 1\" in diameter across the flats, and 1' in length. \r<BR>\n" );
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document.write( "Determine weight of bar. <BR>\n" );
document.write( "Steel weighs .283 lbs. / cu. in. <BR>\n" );
document.write( "Unsure how to solve. <BR>\n" );
document.write( "Non-homework question. <BR>\n" );
document.write( "Thanks.  \r<BR>\n" );
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document.write( "Regular Hexagon: <BR>\n" );
document.write( " d = distance across flats. <BR>\n" );
document.write( " b = hexagon side. <BR>\n" );
document.write( " d = sq. rt. 3b = 1.7321b. \r<BR>\n" );
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document.write( " My attempt: \r<BR>\n" );
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document.write( " 1 * 1.7321 = 1.7321 <BR>\n" );
document.write( " = 1.7321 * 12 = 20.78 = 21 cu. in. <BR>\n" );
document.write( " = 21 * .283 = 5.943 lbs. <BR>\n" );
document.write( " Where am I correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #665280 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=665280\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A hexagonal steel bar is 1\" in diameter across the flats, and 1' in length. <BR>\n" );
document.write( "Determine weight of bar. <BR>\n" );
document.write( "Steel weighs .283 lbs. / cu. in.<BR>\n" );
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document.write( "1\" across the flats --> 0.5\" apothem = r<BR>\n" );
document.write( "Cross-sectional area = nr^2*tan(180/n) where n = # of sides<BR>\n" );
document.write( "Area = 6*0.25*tan(30) =~ 0.866 sq inches<BR>\n" );
document.write( "Vol = 0.866*12 cubic inches = 10.392 cubic inches<BR>\n" );
document.write( "Mass = 10.392*0.283 = 2.941 pounds<BR>\n" );
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