if the points (-2,-1)(11,0)(x,3)and(1,y)form a parallelogram find the value of x y
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since the pts form //gm therefore,
diagonals of //gm must be have to be equal.
hence; -2+x/2=11+1/2
X=14
-1+3/2=0+y/2
y=2
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diagonals of a parallelogram are NOT equal
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