document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=833475>Question 833475</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ABCD is a parallelogram: BA vector + BC vector = ?\r<BR>\n" );
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document.write( "a)BC<BR>\n" );
document.write( "b)BD<BR>\n" );
document.write( "c)AC<BR>\n" );
document.write( "d)DB </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #502626 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=502626\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> BD , the diagonal of the parallelogram.<BR>\n" );
document.write( "We use vectors for displacement, as in \"go 3 miles in the direction <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%5Eo ALIGN=MIDDLE  ALT=\"30%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" > east of North.\"<BR>\n" );
document.write( "The displacement from vertex B to vertex C in the same as<BR>\n" );
document.write( "the displacement from vertex A to vertex D (they are parallel, same magnitude/distance, and in the same direction),<BR>\n" );
document.write( "so BC=AD.<BR>\n" );
document.write( "BA + BC means going from B to A, and then from A to D.<BR>\n" );
document.write( "The sum means going from B to D. </SPAN>\n" );
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