A simple polygon with precisely two ears and one mouth.
Anthropomorphic Polygon
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References
Toussaint, G. "Anthropomorphic Polygons." Amer. Math. Monthly 122, 31-35, 1991.Referenced on Wolfram|Alpha
Anthropomorphic PolygonCite this as:
Weisstein, Eric W. "Anthropomorphic Polygon." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/AnthropomorphicPolygon.html