document.write( "Question 1183914: Find the area of the polygon with the vertices P(-5,4), Q(2,4) and S(1,-1) \r
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Algebra.Com's Answer #814401 by ikleyn(52944) $\"\"$ $\"About$

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\n" ); document.write( "Find the area of the polygon with the vertices P(-5,4), Q(2,4) and S(1,-1)
\n" ); document.write( "Express your answer in the simplest radical form
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\n" ); document.write( "Cannot use this formula Area = 1/2[x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2)]
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document.write( "The given polygon is a triangle.\r\n" );
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document.write( "Side PQ of this triangle is horizontal and has  2 - (-5) = 7 units length.\r\n" );
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document.write( "The altitude of this triangle drawn to side PQ is 4 - (-1) = 5 units long.\r\n" );
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document.write( "Hence, the area of this triangle is half the product of 7 and 5, i.e.   =  = 17.5 square units.    ANSWER\r\n" );
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