Tangram Puzzles
The tangram is an ancient Chinese puzzle with seven pieces.
Contents
Deluxe
Deluxe, wooden editions are available.
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Schools
School kids all over the world enjoy tangram puzzles.
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Figures
Thousands of figures, like these animals, can be made.
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Puzzle
My MATLAB code Tangram opens with a screen showing seven pieces, which are called tans. There are two large triangles, one medium triangle, two small triangles, one square, and one parallelogram.
Tangram;

The puzzle is interactive. You can move the tans.
Kitty
The kitty is a new-comer's favorite.
Swan
The parallelogram is the only tans that does not have reflection symmetry. It needs to be flipped when forming shapes like this swan.
Square
Here are the starting moves for making a square. You can finish the square yourself by downloading Tangram_mzip.
Or, if you are not in a do-it-yourself mood and just want the answer, see square_3.gif.
Web
There are hundreds of web sites about Tangrams. Here are two that I enjoyed.
https://www.pinterest.com/ivahilator/tangram.
https://www.redbubble.com/i/poster/Tangrams-by-TheColorofRain/28243696.LVTDI.
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