| 摘要 |
A plurality of cubic blocks each having a right angled equilateral triangle section are joined with one another in a way of adjacent two blocks being hinged at selected adjacent edges of the blocks to make a serial connection of all the blocks. The hinged blocks pivot on the hinge pin to join in contact with adjacent side faces of respective blocks, the process being repeated in series to form a desired shape of polyhedron with all the blocks. The blocks can shape a number of polyhedrons by joining adjacent side faces.
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