Truncated pyramid

Japanese: 角錐台 - かくすいだい
Truncated pyramid

…The volume of a pyramid with a base area of ​​S and height of h is 1/3 Sh . When a pyramid is cut with a plane parallel to the base, the cut surface is a polygon similar to the base, and the part of the pyramid between these two polygons is called a truncated pyramid. [Minoru Nakaoka]…

*Some of the terminology explanations that mention "frustum of pyramid" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…底面の面積がSで高さがhである角錐の体積は1/3Shである。角錐を底面に平行な平面で切るとき,切口は底面に相似な多角形となるが,これらの両多角形にはさまれた角錐の部分を角錐台という。【中岡 稔】。…

※「角錐台」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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