document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=699401>Question 699401</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the number of sides of a regular polygon such that each interior angle is three times the measure of each exterior angle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #431349 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=431349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = exterior angle<BR>\n" );
document.write( "so  3x = interior angle<BR>\n" );
document.write( "The interior and exterior angle are supplementary<BR>\n" );
document.write( "x + 3x = 180<BR>\n" );
document.write( "4x = 180, divide by 4<BR>\n" );
document.write( "x = 45<BR>\n" );
document.write( "number of sides = 360/45 = 8\r<BR>\n" );
document.write( "\n" );
document.write( "Answer: 8 sides </SPAN>\n" );
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