A dissection fallacy discovered by Dudeney (1958). The same set of tangram pieces can apparently produce two different figures, one of which is a proper subset of the other. This seems true only at a first glance: in reality the area is the same in both cases, since in the left picture the missing foot is compensated by a larger body.

# Tangram Paradox

## See also

Dissection Fallacy, Tangram
*This entry contributed by Margherita
Barile*

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## References

Dudeney, H.*Amusements in Mathematics.*New York: Dover, 1958.

## Referenced on Wolfram|Alpha

Tangram Paradox## Cite this as:

Barile, Margherita. "Tangram Paradox." From *MathWorld*--A Wolfram Web Resource, created by Eric
W. Weisstein. https://mathworld.wolfram.com/TangramParadox.html