Show that the points \(A(3, 5), B(3, 12), C(-4, 12)\) and \(D(-4, 5)\) are the vertices of a square.
 
Answer:
 
Length of \(AB\) \(=\) i
 
Length of \(BC\) \(=\) i
 
Length of \(CD\) \(=\) i
 
Length of \(DA\) \(=\) i
 
Length of \(AC\) \(=\) i
 
Length of \(BD\) \(=\) i
 
The side are in length and the diagonals are in length.
 
Therefore, \(ABCD\) is a .