Asok B. answered • 09/01/15
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According to the distance formula PQ= SqRt [(-4- (-2))^2 + (3-1)^2] = sqrt (4+4) = Sqrt 8
QR= sqrt [ (-2-0)^2 + (1- (-1)^2] = Sqrt (4 +4) = Sqrt 8
Thus PQ=QR
