The points A ( 1 , -2 ) , B ( 2 , 3 ), C ( k , 2 )and D ( - 4 , - 3 ) are the vertices of a
parallelogram. Find the value of k and the altitude of the parallelogram
corresponding to the base AB.
please fast.......
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AD=BC
so, by distance formula
the value of k be 5
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