prove that the points (-2,-1);(1,0);(4,3); and (1,2) are the vertices of a parallelogram .is it a rectangle?
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Part1 of solution.......
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hezlia3:
second part is that you calculate length of each side
I calculated it
AB=Underroot 10
BC=UNDERROOT 18 AND CD=UNDERROOT 10
DA=Underroot 18
so to conclude as A PAIR OF OPPOSITE SIDES ARE PARALLEL AND EQUAL ITS A PARALLELOGRAM
hope it helps
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