document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1050530>Question 1050530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the ratio between an exterior angle and an interior angle is 2:3 find the number of sides in polygon </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #666112 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=666112\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The exterior and interior angles add to 180 degrees<BR>\n" );
document.write( "2:3<BR>\n" );
document.write( "2x+3x=180<BR>\n" );
document.write( "5x=180<BR>\n" );
document.write( "x=36 degrees<BR>\n" );
document.write( "72:108<BR>\n" );
document.write( "The exterior angles are 72 degrees; the interior are 108 degrees.<BR>\n" );
document.write( "(n-2)/n*180=108; (n-2)/n=108/180; cross-multiply and 108n=180n-360; -72n=-360;n=5<BR>\n" );
document.write( "It is a pentagon. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );