Copyright 1998-2004 Cynthia Lanius
Draw as many different hexominoes as you can. (There are 35 different ones!) Which of the hexominoes will fold to form a closed box? Cut the hexominoes from square grid paper to confirm your answer.
Create a system of polyominoes with equilateral triangles rather than squares. How many different triangle pentominoes are there? You may print and use this triangle grid paper. If you have a Java-enabled browser, you may experiment with the triangles and the grid paper online.
Next: Polyominoes' Perimeter
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