YFF CENTRAL TRIANGLE


The Yff central triangle A'B'C' of ABC is a triangle whose sides are orthogonal to the bisectors of ABC and cut the sides of ABC at Ab, Ac, Ba, Bc, Ca, Cb so that the triangles A'BaCa, B'CbAb, C'AcBc, A'B'C' are congruent.

descàrregaYff_central_triangle.mac


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