A tromino or triomino is a shape made of three squares. Technically, a straight line of 3 squares would also be a tromino, but it would be called a rectangle by almost anybody. tessellation black triomino Tromino Tessellation
A tromino or triomino is a shape made of three squares. Technically, a straight line of 3 squares would also be a tromino, but it would be called a rectangle by almost anybody black tessellation triomino Tromino tessellation