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MATH / Parallelogram ABCD has A(0,1), B(2,1) and C(4,0) as three of its vertices. What is the sum of the coordinates of point D? · Discussion

Discussing Parallelogram ABCD has A(0,1), B(2,1) and C(4,0) as three of its vertices. What is the sum of the coordinates of point D? · MATH

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