A tetrasphere is a 4-dimensional surface produced by finding the set of all points that are an equal distance from another point in 5-dimensional space. Because it is curved, it is often represented embedded in 5-dimensional space. A tetrasphere is the shape of the exterior of a pentorb. It is the 4-dimensional hypersphere.

Structure and Sections

A flunic cross-section of a tetrasphere is shaped like a glome.


  • vertex count = 0
  • edge length = 0
  • surface area =0
  • surcell volume = 0
  • surteron bulk = \frac{\pi^2}{6}l^4


  • 1 tetrasphere (4D)

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