## FANDOM

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A torus is a two-dimensional surface produced from the cartesian product of two circles. It can also be considered as a tube where the two ends are connected in a ring. It makes up the surface of a three-dimensional solid torus.

## Structure and Sections

As the compact orientable surface with Euler characteristic 0, it is topologically equivalent to all compact orientable surfaces with one handle.

### Subfacets

• 1 torus (2D)

$\mathbb{S}^2$ $\mathbb{T}^2$ $2\mathbb{T}^2$ $3\mathbb{T}^2$ $4\mathbb{T}^2$