document.write( "Question 368137: find the area of the traingle using determinants
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Algebra.Com's Answer #262360 by Edwin McCravy(20086)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The determinant formula:\r\n" );
document.write( "The area of the triangle whose vertices are (x1,y1),(x2,y2), (x3,y3)\r\n" );
document.write( "is given by this formula:\r\n" );
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document.write( "You can put the points in in any order as long as you take the absolute value\r\n" );
document.write( "of the determinant:\r\n" );
document.write( "(-1,3) (-2,0) (4,1)\r\n" );
document.write( "\"Area=expr%281%2F2%29abs%28%28matrix%283%2C3%2C-1%2C3%2C1%2C-2%2C0%2C1%2C4%2C1%2C1%29%29%29\"\r\n" );
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document.write( "Do you know how to expand (i.e., evaluate) a determinant? If not post again,\r\n" );
document.write( "asking how. The value of the determinant is 17 so\r\n" );
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document.write( "\"Area=expr%281%2F2%29%2Aabs%2817%29+=+17%2F2=8%261%2F2\"\r\n" );
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document.write( "Edwin
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