document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=814507>Question 814507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Rectangle ABCD with N the midpoint of CD. Prove BN is congruent to AN </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #490375 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=490375\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ABCD is a rectangle\r<BR>\n" );
document.write( "\n" );
document.write( "N is the mid point of CD\r<BR>\n" );
document.write( "\n" );
document.write( "Therefore CN congruent to ND\r<BR>\n" );
document.write( "\n" );
document.write( "In triangles <BR>\n" );
document.write( "BCN & DAN\r<BR>\n" );
document.write( "\n" );
document.write( "AD congruent to BC ( opposite sides of a rectangle)\r<BR>\n" );
document.write( "\n" );
document.write( "angle BCN congruent to ADN = angle ( right angle of a rectangle)<BR>\n" );
document.write( "CN congruent to DN ( given - N is the mid point of CD)\r<BR>\n" );
document.write( "\n" );
document.write( "Therefore the triangles BCN & DAN are congruent by ( SAS test)\r<BR>\n" );
document.write( "\n" );
document.write( "Therefore AN is congruent to BN<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );