draw a triangle PQRS in which vertical PQRS are (1,4) , (-5,4) , (-5,-3) , (1,3) respectively also find its area
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Sorry but I don't get Question.
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Area=(x1(y2-y3) + x2(y3-y1) + x3(y1-y2)
Divide the quadlilaterel in two parts by drawing diagonal.
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