show that quadrilateral pqrs from the vertices p (22, 5) Q (7, 10) R (12, 11) S (3, 24) is not a parallelogram
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in a parallelogram opposite sides should be equal
i.e,, pq=rs and pr=rs
distance formula:(x2-x1)2+(y2-y1)2
the distance of pq=15.81
the distance of qr=5.09
the distance of rs=15.81
the distance of sq=26.87
therefore it is not a parallelogram
hence proved//
i.e,, pq=rs and pr=rs
distance formula:(x2-x1)2+(y2-y1)2
the distance of pq=15.81
the distance of qr=5.09
the distance of rs=15.81
the distance of sq=26.87
therefore it is not a parallelogram
hence proved//
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