True or False? the Points $A , B , C$ And $D$

True/False

True or False? The points $A , B , C$ and $D$ are vertices of a square.
$$A ( - 4 , - 6 ) ; B ( - 2 , - 5 ) ; C ( - 3 , - 3 ) ; D ( - 5 , - 4 )$$