document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=831809>Question 831809</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An isoscles triangle has legs of length 13 cm and a base length of 6 cm. Find the measure of the vertex angle (angle between the two legs)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #501646 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=501646\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> width | 6<BR>\n" );
document.write( "area | 12 sqrt(10)~~37.9473<BR>\n" );
document.write( "perimeter | 32<BR>\n" );
document.write( "interior angles | ((180 cos^(-1)(3/13))/pi°  |  (180 cos^(-1)(3/13))/pi°  |  (180 cos^(-1)(151/169))/pi°)~~(1.33793 radians  |  1.33793 radians  |  0.465736 radians)<BR>\n" );
document.write( "interior angle sum | 180° = pi rad </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );