document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=517366>Question 517366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> GIVEN:<BR>\n" );
document.write( "triangle ABC has vertices  A(2,1) B(7,4) and C(4,-1) <BR>\n" );
document.write( "triangle DEF has vertices D(-3,1) E(0,-4) and F(-5,-1)\r<BR>\n" );
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document.write( "PROVE:<BR>\n" );
document.write( "triangle ABC is congruent to triangle DEF\r<BR>\n" );
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document.write( "(it is a 7 step proof) \r<BR>\n" );
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document.write( "I understand that I need to utilize the distance formula to prove corresponding sides congruent, then use the SSS (side side side) postulate to prove the triangles congruent, but I do not understand how to fit this into seven steps. I also don't know whether to use properties of equality or not to justify my equations, but that would make the proof far too long.\r<BR>\n" );
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document.write( "-thanks for the help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344745 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=344745\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "Six uses of the distance formula (one for each side of each of the triangles) that is six steps.  Then the one step to demonstrate SSS.  QED.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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