how many totrominoes can be drawn 12
The types of polyomino with cell numbers 1 to 12 are: Monomino Domino Tromino Tetromino Pentomino Hexomino Heptomino Octomino Decomino Undecomino Dodecomino
The pentomino is a collection of five squares connected to each other completely on one or more sides, similar to the two squares of a traditional "domino", or to the "tetromino" forms found in the game Tetris. There are 18 regular pentomino shapes, including 6 that are mirror forms. There are also the rotated versions of the forms. (see the related link)