The tangram is a traditional Chinese puzzle made of a square divided into seven pieces (one parallelogram, one
square and five triangles), that can be re-arranged to create countless new figures, shapes, and designs.
The origins of the tangram have been traced to Imperial China,
and the creative puzzle game became quite popular in Europe and America in the 19th and early 20th Century.
The 7 polygons or 'tans' that form the tangram are: