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Equal parallelians point : ウィキペディア英語版 | Equal parallelians point In geometry, the equal parallelians point (also called congruent parallelians point) is a special point associated with a plane triangle. It is a triangle center and it is denoted by X(192) in Clark Kimberling's Encyclopedia of Triangle Centers. There is a reference to this point in one of Peter Yff's notebooks, written in 1961.〔 ==Definition==
The ''equal parallelians point'' of triangle ''ABC'' is a point ''P'' in the plane of triangle ''ABC'' such that the three segments through ''P'' parallel to the sidelines of ''ABC'' and having endpoints on these sidelines have equal 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「Equal parallelians point」の詳細全文を読む
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