document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1204003>Question 1204003</A>: <I><SPAN STYLE=\"word-break: break-all;\"> To start the construction of a rest house in tagaytay, the engineer advice his foreman to erect five pegs to establish the perimeter (outside) of the floor plan, which is in the shape of a regular pentagon. The desired area of the floor plan is 80 squared meters. Find the length of the string needed in the layout. Consider that 5 percent is accounted for tying.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #839981 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=839981\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the formula to use here is taken from the web.\r<BR>\n" );
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document.write( "this is what it looks like.\r<BR>\n" );
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document.write( "A is the area.<BR>\n" );
document.write( "a is the length of a side.\r<BR>\n" );
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document.write( "the expression under the square root sign becomes equal to 6.881909602.\r<BR>\n" );
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document.write( "the formula becomes A = 1/4 * 6.881909602 * a^2.<BR>\n" );
document.write( "solve for a^2 to get a^2 = 4 * A / 6.881909602.<BR>\n" );
document.write( "when A = 80, this becomes a^2 = 4 * 80 / 6.881909602 = 46.49872179.<BR>\n" );
document.write( "solve for a to get a = square root of 46.49872179 = 6.818997125.<BR>\n" );
document.write( "the perimeter of the pentagon is 5 times that = 34.40954801.<BR>\n" );
document.write( "add 5% to that to get 35.79973491.<BR>\n" );
document.write( "the minimum length of string you'll need has a length of 35.79973491 meters.<BR>\n" );
document.write( "that's your solution.\r<BR>\n" );
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document.write( "the online calculator that i got this from is found at <a  rel=nofollow HREF= \"https://www.google.com/search?q=area+of+a+pentagon+calculator&rlz=1C1CHBD_enUS961US961&oq=area+of+a+pentagon+calculator&gs_lcrp=EgZjaHJvbWUqCQgAEEUYOxiABDIJCAAQRRg7GIAEMgcIARAAGIAEMggIAhAAGBYYHjIICAMQABgWGB4yCAgEEAAYFhgeMggIBRAAGBYYHjIICAYQABgWGB4yCAgHEAAYFhgeMggICBAAGBYYHjIKCAkQABiGAxiKBdIBCDY5MTBqMGo5qAIAsAIA&sourceid=chrome&ie=UTF-8\" target = \"_blank\">https://www.google.com/search?q=area+of+a+pentagon+calculator&rlz=1C1CHBD_enUS961US961&oq=area+of+a+pentagon+calculator&gs_lcrp=EgZjaHJvbWUqCQgAEEUYOxiABDIJCAAQRRg7GIAEMgcIARAAGIAEMggIAhAAGBYYHjIICAMQABgWGB4yCAgEEAAYFhgeMggIBRAAGBYYHjIICAYQABgWGB4yCAgHEAAYFhgeMggICBAAGBYYHjIKCAkQABiGAxiKBdIBCDY5MTBqMGo5qAIAsAIA&sourceid=chrome&ie=UTF-8</a>\r<BR>\n" );
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