document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=426993>Question 426993</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of the interior angles of a polygon is 540°. How many sides does this polygon have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #297465 by </B><A HREF=/tutors/aboutme.mpl?userid=gwendolyn><B>gwendolyn(128)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=gwendolyn><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=gwendolyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=297465\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sum of the interior angles of a polygon is equal to 2 less than the number of sides the polygon has multiplied by 180.<BR>\n" );
document.write( "This can be expressed in an equation as:<BR>\n" );
document.write( "a=180(s-2) where a equals the sum of interior angles and s equals the number of sides the polygon has. <BR>\n" );
document.write( "If we plug 540 in as the 'a' value, we find that:<BR>\n" );
document.write( "540=180(s-2)<BR>\n" );
document.write( "We can then divide both sides of the equation by 180:<BR>\n" );
document.write( "3=s-2<BR>\n" );
document.write( "Finally, we can add 2 to both sides of the problem:<BR>\n" );
document.write( "5=s<BR>\n" );
document.write( "Therefore we find that the polygon has 5 sides. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );