document.write( "Question 966654: find the area of the pentagon with vertices (3,0) (1,7) (5,3) (-4,2) (-3,-2) \n" ); document.write( "

Algebra.Com's Answer #590801 by Edwin McCravy(20060) $\"\"$ $\"About$

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find the area of the pentagon with vertices (3,0) (1,7) (5,3) (-4,2) (-3,-2)
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document.write( "Plot the points so that we will know their counterclockwise order:\r\n" );
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document.write( "1. List the coordinates in an array, repeating the first one\r\n" );
document.write( "at the bottom of the list.\r\n" );
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document.write( "2. Add all the diagonal products that go from \"northwest to southeast\",\r\n" );
document.write( "and subtract all the diagonal products that go from \"northeast to \r\n" );
document.write( "southwest\", like this:\r\n" );
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document.write( "Add all the numbers on the right:\r\n" );
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document.write( "30+14+6+9+32= 91\r\n" );
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document.write( "Divide by 2:\r\n" );
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document.write( "Answer: Area = 45.5\r\n" );
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document.write( "Edwin

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