Show that quadrilateral \( P Q R S \) formed by vertices \( P(22,5), Q(7,10), R(12,11) \) and \(...
Show that quadrilateral \( P Q R S \) formed by vertices \( P(22,5), Q(7,10), R(12,11) \) and \( S(3,24) \) is not a parallelogram.
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