# Galvagni Figures for Polyhendecs

A *hendecagon* is a polygon with 11 sides.
A *polyhendec* is a figure made of regular hendecagons joined
edge to edge.
A *Galvagni figure* is a figure that can be tiled by a polyform
in more than one way—a kind of self-compatibility figure.
Galvagni figures first appeared in Erich Friedman's
Math Magic
for November 2004.
Here are minimal known Galvagni figures for polyhendecs.
The black tiles have no Galvagni figures.
The gray tiles have no known Galvagni figures.

### Hypersymmetric Variants

### Hypersymmetric Variants

Last revised 2010-07-26.

Back to Galvagni Compatibility.

Back to Polyform Compatibility.

Back to Polyform Curiosities.

Col. George Sicherman
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