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[b]Asunto[/b]
Se describen las cónicas primero como secciones planas de un cono, luego como lugares geométricos y finalmente se ve la equivalencia entre ambas descripciones.
[b]El tema[/b]
Las construcciones que aparecen en este libro ilustran el artículo [b]Las cónicas[/b]: https://www.epsilones.com/paginas/articulos/articulos-102-conicas.html.
[b]+ construcciones[/b]: https://www.epsilones.com/paginas/gg/gg-indice.html