document.write( "Question 234479: What is the area of the triangle with vertices (1, 4), (3, 1) and (11, 1)?
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Algebra.Com's Answer #172886 by Edwin McCravy(20056) $\"\"$ $\"About$

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What is the area of the triangle with vertices (1, 4), (3, 1) and (11, 1)?
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document.write( "The formula for the area of a triangle with vertices\r\n" );
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document.write( "(,), (,), (,)\r\n" );
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document.write( "is \r\n" );
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document.write( "The double bars around the determinant indicate\r\n" );
document.write( "the absolute value of the determinant:\r\n" );
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document.write( "Just for fun, let's check by drawing the triangle:\r\n" );
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document.write( "Counting the units in the base of the triangle,\r\n" );
document.write( "we see that the base is 8 units.  Counting the units\r\n" );
document.write( "in the altitude, or height, of the triangle, we\r\n" );
document.write( "see that it is 3 units high.  Therefore using the\r\n" );
document.write( "basic formula for a triangle .\r\n" );
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document.write( "Edwin

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