document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=491981>Question 491981</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find its area.<BR>\n" );
document.write( "A = (-2, 5); B = (1, 3); C = (-1, 0) <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #334878 by </B><A HREF=/tutors/aboutme.mpl?userid=cleomenius><B>cleomenius(959)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=cleomenius><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=cleomenius><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=334878\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We will use the distance formula to find the distance between vertices.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28x2+-+x1%29%5E2+%2B+%28y2+-+y1%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28x2+-+x1%29%5E2+%2B+%28y2+-+y1%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "AB = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%281+-+-2+%29%5E2+%2B+%283+-+5%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%281+-+-2+%29%5E2+%2B+%283+-+5%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "AB = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%283%29%5E2+%2B+%282%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%283%29%5E2+%2B+%282%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "AB = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2813%29 ALIGN=MIDDLE  ALT=\"sqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "==========================================<BR>\n" );
document.write( "BC = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-1+-+-1%29%5E2+%2B+%280+-+3%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-1+-+-1%29%5E2+%2B+%280+-+3%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "BC = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%282%29%5E2+%2B+%283%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%282%29%5E2+%2B+%283%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "BC = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2813%29 ALIGN=MIDDLE  ALT=\"sqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "==========================================<BR>\n" );
document.write( "AC = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28-1+-+-2%29%5E2+%2B+%280+-+5%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28-1+-+-2%29%5E2+%2B+%280+-+5%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "AC = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%281%29%5E2+%2B+%285%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%281%29%5E2+%2B+%285%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "AC = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2826%29 ALIGN=MIDDLE  ALT=\"sqrt%2826%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Ac = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%282%29 ALIGN=MIDDLE  ALT=\"sqrt%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2813%29 ALIGN=MIDDLE  ALT=\"sqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "==========================================<BR>\n" );
document.write( "At this point, I converted to decimals, they are easier to work with.<BR>\n" );
document.write( "AC = 3.6<BR>\n" );
document.write( "BC = 3.6<BR>\n" );
document.write( "AC = 5.1<BR>\n" );
document.write( "============================================<BR>\n" );
document.write( "Now, we use Herons formula to find the area.<BR>\n" );
document.write( "Area = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = (3.6 + 3.6 + 5.1) / 2<BR>\n" );
document.write( "s = 12.3/ 2 =6.15<BR>\n" );
document.write( "Area = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%286.15%29%282.55%29%282.55%29%281.05%29%29 ALIGN=MIDDLE  ALT=\"sqrt%286.15%29%282.55%29%282.55%29%281.05%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Area = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2819.28%29 ALIGN=MIDDLE  ALT=\"sqrt%2819.28%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Area = 4.4<BR>\n" );
document.write( "Cleomenius. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );