Conic SectionsMath explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.https://www.mathsisfun.com/geometry/conic-sections.htmlConic sections: an introduction from space | Maths, Physics and AppsThe conic sections (or simply conics) are those curves that are obtained as the intersection of the surface of a cone with a plane.https://stefanospezia.altervista.org/conic-sections-introduction-space/CircumferènciaDe radi 2El·lipseDe radi i Parabola
