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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 CPCTC ： ウィキペディア英語版 CPCTC In geometry, "Corresponding parts of congruent triangles are congruent" (CPCTC) is a succinct statement of a theorem regarding congruent triangles, defined as triangles either of which is an isometry of the other.〔(【引用サイトリンク】title=Congruent Triangles )〕 CPCTC states that if two or more triangles are congruent, then all of their corresponding angles and sides are congruent as well. CPCTC is useful in proving various theorems about triangles and other polygons.〔(【引用サイトリンク】title=CPCTC means 'Corresponding parts of congruent triangles are congruent' and... )〕 If triangles ABC and DEF are congruent, denoted as :$\backslash triangle\; ABC\; \backslash cong\; \backslash triangle\; DEF,\backslash ,$ with corresponding pairs of angles at vertices A, D; B, E; and C, F, and with corresponding pairs of sides AB, DE; BC, EF; and CA, FD, then the following statements are true: :$\backslash overline\; \backslash cong\; \backslash overline\backslash ,$ :$\backslash overline\; \backslash cong\; \backslash overline\backslash ,$ :$\backslash overline\; \backslash cong\; \backslash overline\backslash ,$ :$\backslash angle\; BAC\; \backslash cong\; \backslash angle\; EDF\backslash ,$ :$\backslash angle\; ABC\; \backslash cong\; \backslash angle\; DEF\backslash ,$ :$\backslash angle\; BCA\; \backslash cong\; \backslash angle\; EFD\backslash ,$ A related theorem is CPCFC, in which "triangles" is replaced with "figures" so that the theorem applies to any pair of polygons or polyhedrons that are congruent. ==References== 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「CPCTC」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.