FJGC problems in Romantics of Geometry

These are my (459) problems that have been published or referenced in Romantics of Geometry Facebook group.

I am very thankful to my friend Ercole Suppa for collecting the problems. Thanks also to Takis Chronopoulos for maintaining the excellent group dedicated to Geometry.

Click here to download the file (58.3 Mb long).

What is behind the equation of a line in barycentrics?

 

How can we visualize the coefficients in the equation of a line in barycentric coordinates?

It is well known that (p:q:r) are the barycentric coordinates of the isotomic conjugate of the tripole of the line. We make a figure of this.

PDF: What is behind the equation of a line in barycentrics?

Una Geometría Esencial del Triángulo (en construcción)

En muchos escritos sobre el triángulo aparecen conceptos que es conveniente conocer para poder tener una mejor comprensión.

¡Muchas gracias a Ercole Suppa por sus comentarios del original!

Descarga: Una Geometría esencial del triángulo