Tangram

Elementy tangramu
Przykładowy obrazek

Tangram – chińska łamigłówka (układanka), znana od ok. 3000 lat. Składa się z siedmiu elementów w postaci figur geometrycznych (tan), powstałych przez rozcięcie kwadratu. Są nimi:

  • 2 jednakowe duże trójkąty prostokątne,
  • 1 średni trójkąt prostokątny,
  • 2 jednakowe małe trójkąty prostokątne,
  • 1 mały kwadrat,
  • 1 mały równoległobok.

Na identycznej idei oparty jest też starogrecki stomachion, zawierający 14 elementów.

Cel łamigłówki

Celem jest odtworzenie położenia wszystkich siedmiu elementów tangramu w przedstawionym obrazku na podstawie jedynie kształtu jego konturów, a także wymyślanie własnych wzorów.

Reguły

  • w przypadku każdego obrazka należy wykorzystać wszystkie siedem elementów,
  • elementy nie mogą na siebie nachodzić,
  • element w kształcie równoległoboku można odwracać na drugą stronę.

Za pomocą tangramu można ułożyć tysiące obrazków: sylwetek ludzi i zwierząt, przedmiotów, figur geometrycznych.

Linki zewnętrzne

  • Tangram Program pozwala na układanie tangramu w 39 trybach oraz zawiera 18000 gotowych rozwiązań.

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