Inscribed_Circles

The triangle of radical axes of tritangent pairs of circles

Tritangent (Inscribed) circles of triangle t = (ABC).
u = (DEF) triangle with vertices at the centers of the exterior tritangent circles. It has t as its orthic. v = (GHI) is formed from the radical axes of the interior and each one of the exterior tritangent circles of t. v is a translation of the medial triangle of u. It has a circumcircle of equal radius to that of the circumcircle of t.

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