document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=87340>Question 87340</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the area of a regular dodecagon with side 4cm<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #63268 by </B><A HREF=/tutors/aboutme.mpl?userid=favegirl13><B>favegirl13(22)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=favegirl13><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=63268\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a dodecagon has 12 sides.<BR>\n" );
document.write( "By definition, all sides of a regular polygon are equal in length. If you know the length of one of the sides, the area is given by the formula:<BR>\n" );
document.write( "area=<BR>\n" );
document.write( "S^2 N<BR>\n" );
document.write( "___________  (the 4 represents side)<BR>\n" );
document.write( "4tan(&#960;/N)\r<BR>\n" );
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document.write( "S  is the length of any side<BR>\n" );
document.write( "N  is the number of sides<BR>\n" );
document.write( "&#960;  is PI, approximately 3.142<BR>\n" );
document.write( "TAN  is the tangent function calculated in radians <BR>\n" );
document.write( "The area= 176.92\r<BR>\n" );
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