When a tetrahedron O-ABC, whose base triangle ABC is on plane π, is cut by another plane π', a triangle A'B'C' is created on π' as shown in [Tachibana Shunichi] [Reference] |©Shogakukan "> Desargues' Theorem Explained (Figure A) ©Shogakukan "> Desargues' Theorem Explained (Figure B) Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
底面の三角形ABCが平面π上にある四面体O‐ABCを他の平面π′で切ると、 [立花俊一] [参照項目] |©Shogakukan"> デザルグの定理説明図〔図A〕 ©Shogakukan"> デザルグの定理説明図〔図B〕 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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