document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=255152>Question 255152</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What regular polygon has an interior angle measure to exterior angle measure ratio of 3:1?    </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #187506 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=187506\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x+x=180<BR>\n" );
document.write( "4x=180<BR>\n" );
document.write( "x=45<BR>\n" );
document.write( ".<BR>\n" );
document.write( "The interior angle=45*3=135<BR>\n" );
document.write( "Let n=number of sides.<BR>\n" );
document.write( "Int. angle=(180(n-2))/n<BR>\n" );
document.write( "(180(n-2))/n=135<BR>\n" );
document.write( "180n-360=135n<BR>\n" );
document.write( "45n=360<BR>\n" );
document.write( "n=8<BR>\n" );
document.write( "Octagon.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );