document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1201837>Question 1201837</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two of three consecutive sides of regular nonagon(nine sided) are produced to meet at point T. Calculate the size of the angle formed at T. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #836376 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=836376\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Extending the two sides to meet at T forms a triangle with the third side of the nonagon in which two of the angles are exterior angles of the regular nonagon.<br><BR>\n" );
document.write( "The measure of each exterior angle of a regular nonagon is 360/9 = 40 degrees.<br><BR>\n" );
document.write( "The sum of the angles of the triangle is 180 degrees, so the measure of angle T is 180-2(40) = 100 degrees.<br><BR>\n" );
document.write( "ANSWER: 100 degrees<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );