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OpenStudy (anonymous):
it is given that PQRS is a parallelogram. Decide whether it is a rectangle, a rhombus, a square, or none of the above. Justify your answer using theorems about quadrilaterals. 1. P(-2,3) Q(-2,-4) R(2,-4) S(2,3) 2. P(7,-1) Q(3,6) R(-1,-1) S(3,-8) 3. P(-4,0) Q(3,7) R(6,4) S(-1,-3) 4. P(1,1) Q(-2,4) R(-5,1) S(-2,-2)
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OpenStudy (anonymous):
it's 3
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