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Pentomino Cubes

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Author: Annie Fetter
Description: active problem Geometry, difficulty level 3. Given the 12 pentominoes, explain which ones can't be used as the basis for the net of a cube. Then take three of the ones that will work and explain where you can attach the sixth square to make the full net.
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Problem page: http://mathforum.org/librarypow/puzzles/index2.ehtml?puzzle=1527
Solution page: Problem #1527

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