13. Find the side and diagonals of the square

The points \(A(3, 10)\), \(B(9, 10)\), \(C(9,16)\) and \(D(3,16)\) in order are the vertices of a square. Find the value of distance and diagonals of the square.

 

The distance between the points is  and the diagonal is √72√75√71√70 this is equal to all the points which make the square shape.