The points \(A(6, -2)\), \(B(15,-2)\), \(C(6,12)\) and \(D(15,12)\) in order are the vertices of a Rectangle. In the rectangle, the opposite sides are equal. Calculate the side values of the rectangle using distance formula.
The sides of the Rectangle are:
\(AB =\) .
\(BC =\) .
\(CD =\) .
\(AD =\) .