document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1109017>Question 1109017</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One third of a polygon's interior angles are 150°, another third are 140° and the others are 160°. Find the number of sides in the polygon.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #724026 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=724026\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One third of a polygon's interior angles are 150°, another third are 140° and the others are 160°. Find the number of sides in the polygon. <BR>\n" );
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document.write( "One third of a polygon's exterior angles are 30°, another third are 40° and the others are 20°. Find the number of sides in the polygon.<BR>\n" );
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document.write( "n = # of sides<BR>\n" );
document.write( "(n/3)*30 + (n/3)*40 + (n/3)*20 = 360<BR>\n" );
document.write( "10n + 20n = 360<BR>\n" );
document.write( "n = 12 sides<BR>\n" );
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