document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=709179>Question 709179</A>: <I><SPAN STYLE=\"word-break: break-all;\"> . Find the number of sides of a regular polygon if each interior angle measures 162°.  The number of sides is: \r<BR>\n" );
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document.write( "A. 20 <BR>\n" );
document.write( "B. 16 <BR>\n" );
document.write( "C. 24 <BR>\n" );
document.write( "D. 18 <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436410 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=436410\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (n-2)*180, how many degrees for sum of measures of the interior angles.<BR>\n" );
document.write( "(n-2)*180/n, how may degrees in one interior angle because the polygon has n angles.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28n-2%29%2A180%2Fn=162%29 ALIGN=MIDDLE  ALT=\"highlight%28%28n-2%29%2A180%2Fn=162%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find n.\r<BR>\n" );
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document.write( "180 and 162 are divisible by 18.<BR>\n" );
document.write( "This then is equivalent: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n-2%29%2A10%2Fn=9 ALIGN=MIDDLE  ALT=\"%28n-2%29%2A10%2Fn=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(n-2)10=9n<BR>\n" );
document.write( "10n-20=9n<BR>\n" );
document.write( "n=20 </SPAN>\n" );
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