That's not a square though.
* The diagonals of a square bisect each other
* The diagonals of a square bisect its angles.
* The diagonals of a square are perpendicular.
* Opposite sides of a square are both parallel and equal.
* All four angles of a square are equal. (Each is 360/4 = 90 degrees, so every angle of a square is a right angle.)
* The diagonals of a square are equal.
that shape doesn't meet all of those criteria and cannot be classified as a square.
You completely missed the joke. I'm impressed that you can cut/paste from wikipedia though.