This \(4\times4 %speech%, 4 by 4,\) square grid can be covered by three shapes made from \(1\times 1 %speech% ,1 by 1,\) squares. None of the shapes overlap.
If two of the shapes are
then the third shape is
This \(4\times4 %speech%, 4 by 4,\) square grid can be covered by three shapes made from \(1\times 1 %speech% ,1 by 1,\) squares. None of the shapes overlap.
If two of the shapes are
then the third shape is