document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1101442>Question 1101442</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if the vertices of a triangle are A (1,3) B (3,4) and C (1,-4) find its area.\r<BR>\n" );
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document.write( "A) 10<BR>\n" );
document.write( "B) 7<BR>\n" );
document.write( "C)9<BR>\n" );
document.write( "D)12<BR>\n" );
document.write( "E) 18 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #716026 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=716026\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The easiest way to solve is to draw a rectangle on the gridlines around the triangle as in the figure below.<BR>\n" );
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document.write( "Then the area of triangle ABC will be the area of the rectangle minus the area of the outer triangles BCD and ABE<BR>\n" );
document.write( "From the figure, we see that the area of the rectangle is 8*2 = 16<BR>\n" );
document.write( "The area of triangles BCD and ABE is 1*8 + 1/2*2 = 9<BR>\n" );
document.write( "Therefore the area of the triangle ABC is 16 - 9 = 7 </SPAN>\n" );
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