We revisit constructions based on triads of conics with foci at pairs of vertices of a reference triangle. We find that their 6 vertices lie on well-known conics, whose type we analyze. We give conditions for these to be circles and/or degenerate. In the latter case, we study the locus of their center.
翻译:我们重温了三重三角形三角形三角形三角形三角形三角形三角形的构造。我们发现它们的6个顶端是众所周知的顶端,我们分析的是这些顶端的型号。我们给这些圆圈和(或)退化创造了条件。在后一种情况下,我们研究它们的中心中心。