document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=318429>Question 318429</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a regular 13-gon, each interior angle measures____degrees, and each exterior angle measures___degrees. Round to the nearest tenth if necessary.\r<BR>\n" );
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document.write( "Find the sum of the measures of the interior angles of a decagon.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227908 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=227908\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a regular 13-gon, each interior angle measures____degrees, and each exterior angle measures___degrees. Round to the nearest tenth if necessary.<BR>\n" );
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document.write( "The sum of the exterior angles is 360º for ALL polygons.<BR>\n" );
document.write( "Each exterior angle = 360/13 =~ 27.7º<BR>\n" );
document.write( "Each interior angle = 180 - 27.7 = 152.3º<BR>\n" );
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document.write( "Find the sum of the measures of the interior angles of a decagon.<BR>\n" );
document.write( "Sum = (n-2)*180 = 8*180<BR>\n" );
document.write( "= 1440º<BR>\n" );
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