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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pentagonal gyrocupolarotunda ： ウィキペディア英語版 Pentagonal gyrocupolarotunda In geometry, the pentagonal gyrocupolarotunda is one of the Johnson solids (''J''33). Like the pentagonal orthocupolarotunda (''J''32), it can be constructed by joining a pentagonal cupola (''J''5) and a pentagonal rotunda (''J''6) along their decagonal bases. The difference is that in this solid, the two halves are rotated 36 degrees with respect to one another. ==Formulae== The following formulae for volume and surface area can be used if all faces are regular, with edge length ''a'':〔Stephen Wolfram, "(Pentagonal gyrocupolarotunda )" from Wolfram Alpha. Retrieved July 24, 2010.〕 $V=\backslash frac(11+5\backslash sqrt)a^3\backslash approx9.24181...a^3$ $A=\; (5+\backslash frac\backslash sqrt+\backslash frac\backslash sqrt\{25+10\backslash sqrt\{5\}\})\; a^2\backslash approx23.5385...a^2$ 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「Pentagonal gyrocupolarotunda」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.