document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=310134>Question 310134</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to prove that Triangle ABC is isosceles.D is the midpoint at the base.<BR>\n" );
document.write( "Here is what I have so far:<BR>\n" );
document.write( "Given:Angle BAD is congruent to Angle CAD<BR>\n" );
document.write( "Given:Line segment AD is perpendicular to Line segment BC<BR>\n" );
document.write( "This is what I come up with myself:<BR>\n" );
document.write( "Angle BDA is congruent to Angle CDA---Right Angle Theorem<BR>\n" );
document.write( "Angle ADB is congruent to Angle ADC---Right Angle Theorem<BR>\n" );
document.write( "Line segment AD is congruent to Line segment AD---Reflexive<BR>\n" );
document.write( "Line segment BD is congruent to Line segment CD---Line segment AD is a midpoint of Line segment BC<BR>\n" );
document.write( "Angle BAD is congruent to Angle CAD---Line segment AD is an angle bisector<BR>\n" );
document.write( "Triangle ABD is congruent to Triangle ACD---ASA<BR>\n" );
document.write( "Line segment AB is congruent to Line segment AC---CPCTC<BR>\n" );
document.write( "Triangle ABC is isosceles---Line segment AD is perpendicular to Line segment BC and an angle bisector of Angle BAC\r<BR>\n" );
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document.write( "Apparently, there is quite a lot missing and I have not received any help from teachers, yours would be greatly appreciated!<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 #221992 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=221992\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"Given:Angle BAD is congruent to Angle CAD\"\r<BR>\n" );
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document.write( "\"Angle BDA is congruent to Angle CDA---Right Angle Theorem\"\r<BR>\n" );
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document.write( "\"Line segment AD is congruent to Line segment AD---Reflexive\"\r<BR>\n" );
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document.write( "triangle BAD is congruent to triangle CAD---ASA\r<BR>\n" );
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document.write( "side BA is congruent to side CA---CPCTC\r<BR>\n" );
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document.write( "triangle ABC is isoc---definition\r<BR>\n" );
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document.write( "this is the essence of the proof<BR>\n" );
document.write( "you may need to \"touch up\" a little </SPAN>\n" );
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