Gods and men with three sides

In his opening chapter of Adams Vs. God: The Rematch, Phillip Adams quotes Charles de Montesquieu as saying,

If a triangle made a god, it would give him three sides.

This is true, as evidenced by the many god's that humans, religious and otherwise, have created after their own likeness.

However, if the three-sided God pre-existed the creatures (John 1:1-3), and made creatures in his own image (Genesis 1:26), wouldn't they still have three sides?