document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1014373>Question 1014373</A>: <I><SPAN STYLE=\"word-break: break-all;\"> give me the area of a quadrilateral with the sides 34,50,,36,48 in sq.yards  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #630683 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20081)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=630683\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> That answer is wrong.  A quadrilateral is not a rigid body,<BR>\n" );
document.write( "as is a triangle.  Trerefore the area of a quadrilateral<BR>\n" );
document.write( "cannot be determined from only the sides.\r<BR>\n" );
document.write( "\n" );
document.write( "Here are two quadrilaterals both with sides<BR>\n" );
document.write( "34,50,36,48\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C180%2C-50%2C62%2C-10%2C45%2C%0D%0A%0D%0Aline%280%2C0%2C34%2C0%29%2C%0D%0Aline%2834%2C0%2C59%2C43.30127019%29%2C%0D%0Aline%2859%2C43.30127019%2C23.01938041%2C42.12016293%29%2C%0D%0Aline%2823.01938041%2C42.12016293%2C0%2C0%29%2C%0D%0Alocate%2815%2C0%2C34%29%2C+locate%2840%2C23%2C50%29%2C+locate%2836%2C42%2C36%29%2C+locate%2813%2C24%2C48%29%0D%0A%0D%0A%0D%0A+%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "That quadrilateral has area 1480 sq. yards.\r<BR>\n" );
document.write( "\n" );
document.write( "But look at the quadrilateral below.  It also has<BR>\n" );
document.write( "sides 34,50,36,48.\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C1375%2F7%2C-50%2C62%2C-10%2C45%2C%0D%0A%0D%0Aline%280%2C0%2C34%2C0%29%2C%0D%0Aline%2834%2C0%2C-12.98463105%2C17.10100716%29%2Ccircle%28-12.98463105%2C17.10100716%2C.6%29%2C%0D%0Aline%28-12.98463105%2C17.10100716%2C-47.50398585%2C35.391568%29%2C%0D%0Aline%28-47.50398585%2C35.391568%2C0%2C0%29%2C%0D%0Alocate%2815%2C0%2C34%29%2C+locate%289%2C13%2C50%29%2C+locate%28-22%2C13%2C48%29%2C+locate%28-30%2C30%2C36%29%0D%0A%0D%0A%0D%0A+%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "But its area is only about 291 square yards.\r<BR>\n" );
document.write( "\n" );
document.write( "So something else has to be given to determine the area besides<BR>\n" );
document.write( "just the 4 sides.  Did you leave out something?  Like one of its<BR>\n" );
document.write( "angles had to be a right angle.  Maybe it was drawn in your book<BR>\n" );
document.write( "with a 90° angle.  If so you can tell me what else was given in<BR>\n" );
document.write( "the thank-you note form below and I'll get back to you.  BTW, I<BR>\n" );
document.write( "do not charge at all because I do this for fun.\r<BR>\n" );
document.write( "\n" );
document.write( "Edwin</pre>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );