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In geometry, the Mandart inellipse of a triangle is an ellipse inscribed within the triangle, tangent to its sides at the contact points of its excircles (which are also the vertices of the extouch triangle and the endpoints of the splitters).〔.〕 The Mandard inellipse is named after H. Mandart, who studied it in two papers published in the late 19th century.〔.〕〔; . As cited by .〕 ==Parameters== As an inconic, the Mandart inellipse is described by the parameters : where ''a'', ''b'', and ''c'' are sides of the given triangle. 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「Mandart inellipse」の詳細全文を読む スポンサード リンク
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