document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130643>Question 1130643</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A regular polygon ABCDE is inscribe in a circle, centre O, calculate 1. A angleB D 2. AOD  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #747324 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=747324\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <a  rel=nofollow HREF=\"http://tinypic.com?ref=15ocisp\" target=\"_blank\"><IMG STYLE=\"max-width:80%;\" src=\"http://i67.tinypic.com/15ocisp.png\" border=\"0\" alt=\"Image and video hosting by TinyPic\"></a>\r<BR>\n" );
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document.write( "calculate \r<BR>\n" );
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document.write( "1.  < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+B+D ALIGN=MIDDLE  ALT=\"A+B+D\"   DISABLED_style= \"max-width:90%; height:auto;\" > = > < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+B+O ALIGN=MIDDLE  ALT=\"A+B+O\"   DISABLED_style= \"max-width:90%; height:auto;\" >    + <<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O+B+D ALIGN=MIDDLE  ALT=\"O+B+D\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "< <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+B+O=360%2F5=72+ ALIGN=MIDDLE  ALT=\"A+B+O=360%2F5=72+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( " observe triangle   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O+B+D ALIGN=MIDDLE  ALT=\"O+B+D\"   DISABLED_style= \"max-width:90%; height:auto;\" >: -> angle <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BOD=144 ALIGN=MIDDLE  ALT=\"BOD=144\"   DISABLED_style= \"max-width:90%; height:auto;\" > and  the  < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O+B+D ALIGN=MIDDLE  ALT=\"O+B+D\"   DISABLED_style= \"max-width:90%; height:auto;\" >=< <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ODB ALIGN=MIDDLE  ALT=\"ODB\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so, < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O+B+D=%28180-144%29%2F2=36%2F2=18 ALIGN=MIDDLE  ALT=\"O+B+D=%28180-144%29%2F2=36%2F2=18\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "hens  < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+B+D+=+72%2B18=90+ ALIGN=MIDDLE  ALT=\"A+B+D+=+72%2B18=90+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  \r<BR>\n" );
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document.write( "2.  < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AOD ALIGN=MIDDLE  ALT=\"AOD\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AOE ALIGN=MIDDLE  ALT=\"AOE\"   DISABLED_style= \"max-width:90%; height:auto;\" >+ < <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=EOD=360%2F5%2B360%2F5=2%2A72=144 ALIGN=MIDDLE  ALT=\"EOD=360%2F5%2B360%2F5=2%2A72=144\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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