Japanese ボッテマの定理 Cited by user Neuberg 469 on 09 Mar 2024 [[ファイル:Bottema's_theorem.png|右|サムネイル|350x350ピクセル| の位置に依らず一定である.
English Bottema's theorem Cited by user Count Von Aubel on 09 May 2020 Bottema's theorem is a plane geometry theorem by the Dutch mathematician Oene Bottema (Groningen, 1901 - 1992).