翻訳と辞書 |
Heronian tetrahedron : ウィキペディア英語版 | Heronian tetrahedron A Heronian tetrahedron is a tetrahedron whose side lengths, face areas and volume are all rational numbers. The faces must therefore all be Heronian triangles. A tetrahedron with rational sides is not necessarily a Heronian tetrahedron because its face areas and volume may not be rational numbers. A Heronian tetrahedron is sometimes called a perfect tetrahedron. 117 is the smallest possible length of the longest side of a perfect tetrahedron with integral sidelengths. Its other sidelengths are 51, 52, 53, 80 and 84. ==See also==
* Euler brick
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Heronian tetrahedron」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|