document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=394503>Question 394503</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The measure of an interior angle of a regular polygon is given which is 90. find the number of sides in each polygon </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #279917 by </B><A HREF=/tutors/aboutme.mpl?userid=jrfrunner><B>jrfrunner(365)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jrfrunner><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=jrfrunner><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=279917\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It is known that<BR>\n" );
document.write( "The sum of the interior angles of a \"n\" sided polygon is =(n-2)*180<BR>\n" );
document.write( "--<BR>\n" );
document.write( "assuming that all the interior angles are equal, then a single interior angle will measure (n-2)*180/n<BR>\n" );
document.write( "==<BR>\n" );
document.write( "Since you state that the interior angle is 90 then<BR>\n" );
document.write( "(n-2)*180/n=90<BR>\n" );
document.write( "180n-360=90n<BR>\n" );
document.write( "90n=360<BR>\n" );
document.write( "n=4 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );