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A dodecagram is a star polygon that has twelve vertices. There is one regular form: . A regular dodecagram has the same vertex arrangement as a regular dodecagon, which may be regarded as . The name dodecagram combine a numeral prefix, ''dodeca-'', with the Greek suffix ''-gram''. The ''-gram'' suffix derives from ''γραμμῆς'' (''grammēs'') meaning a line.〔(γραμμή ), Henry George Liddell, Robert Scott, ''A Greek-English Lexicon'', on Perseus〕 == Isogonal variations== A regular dodecagram can be seen as a quasitruncated hexagon, t=. Other isogonal (vertex-transitive) variations with equal spaced vertices can be constructed with two edge lengths. = |} 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「Dodecagram」の詳細全文を読む スポンサード リンク
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