FEUERBACH POINT


The Feuerbach point F of a triangle is the contact point between the incircle ci and the ninecircle cn. It is the point X(11) in ETC. Also are called Feuerbach points the contact points between the ninecircle and the excircles.

descÓrregaFeuerbach_point.macdescÓrregaexFeuerbach_points.mac


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