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The points \(A(8, -12)\), \(B(-6, 4)\), \(C(-6,24)\) and \(D(8,8)\) in order are the vertices of a parallelogram. In the parallelogram, the opposite sides are equal. Calculate the side values of the parallelogram using the distance formula.
 
The sides of the parallelogram:
 
\(AB =\) i.
 
\(BC =\) i.
 
\(CD =\) i.
 
\(AD =\) i.