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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 hexacontagon ： ウィキペディア英語版 hexacontagon In geometry, a hexacontagon or hexecontagon is a sixty-sided polygon or 60-gon.〔.〕〔(''The New Elements of Mathematics: Algebra and Geometry ) by Charles Sanders Peirce (1976), p.298〕 The sum of any hexacontagon's interior angles is 10440 degrees. ==Regular hexacontagon properties== A ''regular hexacontagon'' is represented by Schläfli symbol and also can be constructed as a truncated triacontagon, t, or a twice-truncated pentadecagon, tt. One interior angle in a regular hexacontagon is 174°, meaning that one exterior angle would be 6°. The area of a regular hexacontagon is (with ) :$A\; =\; 15t^2\; \backslash cot\; \backslash frac$ and its inradius is :$r\; =\; \backslash fract\; \backslash cot\; \backslash frac$ The circumradius of a regular hexacontagon is :$R\; =\; \backslash fract\; \backslash csc\; \backslash frac$ This means that the trigonometric functions of π/60 can be expressed in radicals. 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「hexacontagon」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.