engleski

An interesting analogy of Kimberling-Yff’s problem

The existence of three circles touching the inscribed circle of an allowable triangle in an isotropic plane and going through two vertices of a considered triangle is proved in this paper. Some relations between these three circles of a triangle and elements of a triangle are investigated. Formulae for their radii are also given.

isotropic plane, standard triangle, Kimberling-Yff’s circles

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