document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=66739>Question 66739</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Show that the quadrilateral with vertices A(-3,5), B(-1,0), C(11,12), and D(1,9) is a trapezoid. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #47406 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=47406\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Show that the quadrilateral with vertices A(-3,5), B(-1,0), C(11,12), and D(1,9) is a trapezoid.<BR>\n" );
document.write( "SLOPE OF AD=(9-5)/(1+3)=4/4=1<BR>\n" );
document.write( "SLOPE OF BC=(12-0)/(11+1)=12/12=1<BR>\n" );
document.write( "HENCE AD||BC<BR>\n" );
document.write( "HENCE ABCD IS A TRAPEZIUM </SPAN>\n" );
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