area of a quadrilateral ABCD the coordinates of whose vertices are A(1,-4) B (5,4) C (7,-6) D (-5,-4)
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We have,
A(1,-4) B(5,4) C(7,-6) D(-5,-4)
AB=
A(1,-4) B(5,4) C(7,-6) D(-5,-4)
AB=
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