document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=314143>Question 314143</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many diagonals does a 12-sided regular polygon have? A regular polygon has sides of equal length and equal angles where two sides meet. A diagonal is a line which connects any two corners of the polygon, but which is not a side of the polygon.\r<BR>\n" );
document.write( "\n" );
document.write( "(1) 27   (2) 35   (3) 44   (4) 54   (5) 65 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #224735 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=224735\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> each of the 12 corners has a line to the other 11 corners<BR>\n" );
document.write( "___ 2 of the lines are sides of the polygon and the other 9 are diagonals\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "12 * 9 = 108 ___ BUT ___ a diagonal from corner A to corner B is the same as a diagonal from corner B to corner A\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "108 / 2 = 54 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );