Math Shirt | Truncated Icosahedron

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This nerdy math shirt shows the classic Archimedean solid with its Euler characteristic equation, χ = vertices - edges + faces = 2. The surface of any convex polyhedron is a sphere, hence will have the Euler characteristic of a sphere, which is 2 for a 3-D polyhedron. For the truncated icosahedron, this equation is 60 - 90 + 32 = 2. The Euler characteristic is a deep topological property connected with the Lefschetz fixed point theorem. More mathematics about this shirt at our nerdy shirt blog!

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White T-Shirt: $16.99	Dark T-Shirt: $20	White Hoodie: $34.99
White Jersey: $24.99	Colored T-Shirt: $20	Hot T-Shirt: $20
Ladies' White Tee: $16.99	Colored Hoodie: $39.99	Dark Hoodie: $39.99
Blue Jersey: $26.99	Dark Jersey: $26.99	Ladies' Raglan: $24.99