document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=107979>Question 107979</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the sum the interior angles of a 13-gon?<BR>\n" );
document.write( "What is the sum the interior angles of a 20-gon?<BR>\n" );
document.write( "What is the sum the interior angles of a 18-gon? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #78691 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</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=78691\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  \r<BR>\n" );
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document.write( "The sum of interior angle ( Sum-of-interior-angles-n-gon) of n-gon is:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+%28n-2%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%28n-2%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If we have a <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13-gon ALIGN=MIDDLE  ALT=\"13-gon\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=13 ALIGN=MIDDLE  ALT=\"n=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+%2813-2%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2813-2%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+%2811%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2811%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+%2811%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2811%29180\"   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=Sum-of-interior-angles-n-gon+=+1980 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+1980\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20-gon ALIGN=MIDDLE  ALT=\"20-gon\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=20 ALIGN=MIDDLE  ALT=\"n=20\"   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=Sum-of-interior-angles-n-gon+=+%2820-2%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2820-2%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+%2818%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2818%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+3240 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+3240\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18-gon ALIGN=MIDDLE  ALT=\"18-gon\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=18 ALIGN=MIDDLE  ALT=\"n=18\"   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=Sum-of-interior-angles-n-gon+=+%2818-2%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2818-2%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+%2816%29180 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+%2816%29180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Sum-of-interior-angles-n-gon+=+2880 ALIGN=MIDDLE  ALT=\"Sum-of-interior-angles-n-gon+=+2880\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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