document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=338080>Question 338080</A>: <I><SPAN STYLE=\"word-break: break-all;\"> given: AD is perpendicular to FB, angle 1 is congruent to angle 3<BR>\n" );
document.write( "prove: angle 2 is congruent to angle 4<BR>\n" );
document.write( "this is the figure<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 #242371 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=242371\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given AD is perpendicular to FB, you know <BR>\n" );
document.write( "(angle4 + angle3 = 90)<BR>\n" );
document.write( "(angle1 + angle2 = 90)\r<BR>\n" );
document.write( "\n" );
document.write( "So then<BR>\n" );
document.write( "90 = 90<BR>\n" );
document.write( "(angle4 + angle3 = angle1 + angle 2)<BR>\n" );
document.write( "You are told angle3 = angle1<BR>\n" );
document.write( "thus<BR>\n" );
document.write( "(angle4 + angle1 = angle1 + angle2)<BR>\n" );
document.write( "(angle4 = angle2) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );