翻訳と辞書 Words near each other ・ Triacanthagyna septima ・ Triacanthidae ・ Triacanthodes ・ Triacanthus ・ Triacanthus biaculeatus ・ Triacastela ・ Triacetate-lactonase ・ Triacetelus ・ Triacetelus emarginatus ・ Triacetelus sericatus ・ Triacetelus viridipennis ・ Triacetic acid lactone ・ Triacetin ・ Triacetone amine ・ Triacontadigon ・ Triacontagon ・ Triacontanol ・ Triacsin C ・ Triactis ・ Triacylglycerol lipase ・ Triacylglycerol lipase (disambiguation) ・ Triacylglycerol—sterol O-acyltransferase ・ Triad ・ Triad (anatomy) ・ Triad (band) ・ Triad (Charmed) ・ Triad (computers) ・ Triad (environmental science) ・ Triad (film) ・ Triad (fraternities) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Triacontagon ： ウィキペディア英語版 Triacontagon In geometry, a triacontagon is a thirty-sided polygon or 30-gon. The sum of any triacontagon's interior angles is 5040 degrees. ==Regular triacontagon == The ''regular triacontagon'' is a constructible polygon, by an edge-bisection of a regular pentadecagon, and can also be constructed as a truncated pentadecagon, t. One interior angle in a regular triacontagon is 168°, meaning that one exterior angle would be 12°. The triacontagon is the largest regular polygon whose interior angle is the sum of the interior angles of smaller polygons: 168° is the sum of the interior angles of the equilateral triangle (60°) and the regular pentagon (108°). The area of a regular triacontagon is (with ) :$A\; =\; \backslash frac\; t^2\; \backslash cot\; \backslash frac\; =\; \backslash frac\; t^2\; (\backslash sqrt)\}\}\; =\; \backslash frac\; t^2\; (\backslash sqrt\; +\; 3\backslash sqrt\; +\; \backslash sqrt\backslash sqrt\; t\; \backslash cot\; \backslash frac\; =\; \backslash frac\; t(\backslash sqrt\; +\; 3\backslash sqrt\; +\; \backslash sqrt\backslash sqrt\; t\; \backslash csc\; \backslash frac\; =\; \backslash frac\; t(2\; +\; \backslash sqrt\; +\; \backslash sqrt\{15+6\backslash sqrt\{5\}\})$ 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「Triacontagon」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.