A tromino is a geometric shape made from three squares joined along complete edges. There are only two possible trominoes: the three component squares may be joined in a line or an L-shape as shown below:

trominoV.jpg

Trominoes are a subset of the class of polyominoes.

See also

• Triominos — a game like dominos but using triangular pieces

External links

• Golomb's inductive proof of a tromino theorem at cut-the-knot
• Tromino Puzzle at cut-the-knot
• Interactive Tromino Puzzle at Amherst College

Polyforms

Triomino | 三格骨牌