document.write( "Question 1183915: Find the area of the polygon with the vertices P(-5,4), Q(2,4) and S(1,-1) \r
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\n" ); document.write( "\n" ); document.write( "Please note : Student is only permitted to use formula Area= 1/2 bh \r
\n" ); document.write( "\n" ); document.write( "Cannot use this formula Area = 1/2[x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2)]
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Algebra.Com's Answer #814397 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "P and Q have the same y coordinate 4, so PQ is a horizontal segment whose length is the difference between the x coordinates of P and Q: (2-(-5))=2+5=7. Use it as the base.

\n" ); document.write( "The height is then the difference between 4 and the y coordinate of S: 4-(-1)=4+1=5.

\n" ); document.write( "So the area using 1/2 base times height is (1/2)(7)(5).

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