document.write( "Question 162512: Calculate the area of the triangle with the following vertices:
\n" ); document.write( "(-8, -2), (-1, -11), and (-1, -2)\r
\n" ); document.write( "\n" ); document.write( "I tried my best, and got an answer of 31.5 sq units. I just want to know if this is correct,and if not, see the steps to come to the correct answer and what it is. I thank you very much for your time!
\n" ); document.write( "

Algebra.Com's Answer #119773 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
First I want to see if any of the 3 lines that
\n" ); document.write( "connect these point is either horizontal or
\n" ); document.write( "vertical. that will just make the job easier
\n" ); document.write( "The pair of points (-1,-11) and (-1,-2) both have
\n" ); document.write( "the same x value, which makes the line between
\n" ); document.write( "them vertical.
\n" ); document.write( "The pair (-8,-2) and (-1,-2) have the same y value,
\n" ); document.write( "so the line between them is horizontal.
\n" ); document.write( "That means the triangle is a right triangle
\n" ); document.write( "The length of the 1st line is just the difference
\n" ); document.write( "between \"-11\" and \"-2\", which is \"9\"
\n" ); document.write( "The length of the 2nd line is just the difference
\n" ); document.write( "between \"-8\" and \"-1\", which is \"7\"
\n" ); document.write( "Using the formula \"A+=+%281%2F2%29%2Ab%2Ah\"
\n" ); document.write( "\"A+=+%281%2F2%29%2A9%2A7\"
\n" ); document.write( "\"A+=+63%2F2\"
\n" ); document.write( "\"A+=+31.5\"
\n" ); document.write( "Same as you got
\n" ); document.write( "
\n" );