document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=558206>Question 558206</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Calculate the exterior angle of a regular polygon in which the interior angle is four times the exterior angle. Hence 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 #362977 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=362977\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Calculate the exterior angle of a regular polygon in which the interior angle is four times the exterior angle. Hence find the number of sides in the polygon.<BR>\n" );
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document.write( "Exterior: x<BR>\n" );
document.write( "Interior: 4x<BR>\n" );
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document.write( "x + 4x = 180<BR>\n" );
document.write( "x = 36 degrees<BR>\n" );
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document.write( "Sum of ALL exterior angles is 360 degrees.<BR>\n" );
document.write( "# of exterior angles = 360/36 = 10<BR>\n" );
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document.write( "# of sides = 10<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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