Circumcenters of residual triangles - Eckart Schmidt This paper is an extension of Mario Dalcín's work on isotomic inscribed triangles and their residuals. Considering the circumcircles of residual triangles with respect to isotomic inscribed triangles there are two congruent triangles of circumcenters. We show that there is a rotation mapping these triangles to each other. The Center and angle of rotation depend on the Miquel points. Furthermore we give an interesting generalization of Dalcín's definitive example. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education