document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=508445>Question 508445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you please show me how to write a two-coloumn proof for this:\r<BR>\n" );
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document.write( "Given:<1 and <2 form a linear pair.<BR>\n" );
document.write( "      <2 and <3 are supplementary.<BR>\n" );
document.write( "Prove:<1 is congruent to <3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #341001 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=341001\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"Form a linear pair\" is essentially the same as supplementary. Hence,\r<BR>\n" );
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document.write( "m1 + m2 = 180 --> m1 = 180 - m2<BR>\n" );
document.write( "m2 + m3 = 180 --> m3 = 180 - m2\r<BR>\n" );
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document.write( "Hence m1 and m3 are congruent.\r<BR>\n" );
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document.write( "To write a two-column proof, simply write out each step in a table, and justify each one (i.e. why is it true?). </SPAN>\n" );
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