document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773977>Question 773977</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to make an arch that's 20 ft wide at the base and 4 ft high at the apex. How long of a piece of material will I need? Thank you in advance. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471995 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=471995\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I need to make an arch that's 20 ft wide at the base and 4 ft high at the apex. How long of a piece of material will I need? Thank you in advance.<BR>\n" );
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document.write( "It depends on the shape.<BR>\n" );
document.write( "If it's 2 triangles --> 4sqrt(29) =~ 21.54 feet<BR>\n" );
document.write( "If it's circular --> 26.48 feet<BR>\n" );
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document.write( "If you bend something like a PVC pipe, it'll be close to circular in shape.<BR>\n" );
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