A. A parallelogram with non perpendicular adjacent sides<===>
2. A (-5,-3), B (-4,-1), C (-1,-1), D (0,-3)
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C. A rectangle with non congruent adjacent sides
4. A (3,3), B (3,6), C (7,6), D (7,3)
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B. A Square
3. A (3,3), B (2,5), C (4,6), D (5,4)
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D. a rhombus with non perpendicular adjacent sides
1. A (2,0), B (3,2), C (6,3), D (5,1)