document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=390575>Question 390575</A>: <I><SPAN STYLE=\"word-break: break-all;\"> HELP ! Use coordinate geometry to prove that the diagonals of a rectangle are congruent.Please show all work. HINT: apply distance formula to OQ and PR.\r<BR>\n" );
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document.write( "thank you soo much!\r<BR>\n" );
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document.write( "Heres a pic!<BR>\n" );
document.write( "http://i1189.photobucket.com/albums/z426/cwallace2/Casey001.jpg </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #278069 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=278069\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From the picture you sent, and using the distance formula,<BR>\n" );
document.write( "PR = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28a-0%29%5E2+%2B+%280-b%29%5E2%29+=+sqrt%28a%5E2+%2B+b%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28a-0%29%5E2+%2B+%280-b%29%5E2%29+=+sqrt%28a%5E2+%2B+b%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <BR>\n" );
document.write( "OQ = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28a-0%29%5E2+%2B+%28b-0%29%5E2%29+=+sqrt%28a%5E2+%2B+b%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28a-0%29%5E2+%2B+%28b-0%29%5E2%29+=+sqrt%28a%5E2+%2B+b%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Therefore PR = OQ, and the two diagonals are congruent.<BR>\n" );
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