document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=202822>Question 202822</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I would appreciate help with this, I am on the SECOND semester of this class, due to this proof and I am about to run out of time. I have submitted this 4x and each time it is wrong. Please help me out, thanks!\r<BR>\n" );
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document.write( "Prove: If the base angles of a triangle are congruent, then the triangle is isosceles.\r<BR>\n" );
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document.write( "Given: Triangle BAC with angle B = angle C  <BR>\n" );
document.write( "To Prove: Triangle is isosceles.\r<BR>\n" );
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document.write( "Construction:<BR>\n" );
document.write( "Draw a perpendicular line from vertex A on side BC which meets side BC at L.\r<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 #152989 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=152989\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Prove: If the base angles of a triangle are congruent, then the triangle is isosceles. \r<BR>\n" );
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document.write( "Given: Triangle BAC with angle B = angle C <BR>\n" );
document.write( "To Prove: Triangle is isosceles. <BR>\n" );
document.write( "Construction:<BR>\n" );
document.write( "Draw a perpendicular line from vertex A on side BC which meets side BC at L. <BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Draw triangle ABC with B = C<BR>\n" );
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document.write( "Draw a perpendicular from A to side BC forming Angle ALB and Angle ALC<BR>\n" );
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document.write( "Prove ABC is isosceles.<BR>\n" );
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document.write( "Proof:<BR>\n" );
document.write( "B = C---------------------------Given<BR>\n" );
document.write( "Angle ALB1 = Angle ALC = 90-----def of perpendicular line<BR>\n" );
document.write( "AL = AL-------------------------identity<BR>\n" );
document.write( "tri LBA congruent to tri LCA----angle-side-angle theorem<BR>\n" );
document.write( "BA = CA-------------------------corresponding parts of congruent triangles<BR>\n" );
document.write( "tri ABC is isosceles------------definition of isosceles triangle<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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