POINT X(12)


The point X(12) of a triangle is the second similitude center between the incircle and the ninecircle, the first being the Feuerbach point F. Also are called points X(12) the external similitude centers between the ninecircle and the excircles.

descÓrregaPoint_X12.mac                       descÓrregaexX12_points.mac


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