Decagon

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10    -sided shape is called a    Decagon Science & Nature > Polygon Names

14    -sided shape is called a    Tetrakaidecagon Science & Nature > Polygon Names

Tetrahedron, Cube, Octahedron, Dodecagon, Icosahedron    are all    Plato’s Solids These are the 5 Platonic Solids. Misc > Common Threads 2

15    -sided shape is called a    Pendedecagon Science & Nature > Polygon Names

16    -sided shape is called a    Hexdecagon Science & Nature > Polygon Names

13    -sided shape is called a    Triskaidecagon Science & Nature > Polygon Names

12    -sided shape is called a    Dodecagon Science & Nature > Polygon Names

11    -sided shape is called a    Hendecagon Science & Nature > Polygon Names

18    -sided shape is called an    Octdecagon Science & Nature > Polygon Names

19    -sided shape is called an    Enneadecagon Science & Nature > Polygon Names

17    -sided shape is called a    Heptdecagon Science & Nature > Polygon Names