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3D Geometry round 2

A few more 3D Geometrical figures:

正八面体 – せいはちめんたい – regular octahedron
正六面体 – せいろくめんたい – regular hexahedron

平行六面体 – へいこうろくめんたい – parallelepiped

反角柱 – はんかくちゅう – antiprism
トーラス – とーらす – torus
レンズ – れんず – lens

And something beyond 3 dimensions:

超立方体 – ちょうりっぽうたい – hypercube

and while we’re a it, dimensions:

一次元 – いちじげん – one dimesion
二次元 – にじげん – two dimensions
三次元 – さんじげん – three dimensions
四次元 – よじげん – four dimensions

Note the difference between the physical dimensions and the dimensions of numbers:

二元数 – にげんすう – 2 dimensional numbers
四元数 – しげんすう – quaternian
八元数 – はちげんすう – octonian

related:
Types of Numbers

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