Why is the shape of a circle called a conics?

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ishpiro | College Teacher | (Level 1) Educator

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Circle is a one of the geometric shapes called conic sections ("conics" for short). This group of shapes can be obtained by intersecting a cone with a plane. If one cuts a cone with a plane parallel to its base, the shape of the intersection will be a circle.

Other examples of conic sections are ellipses, hyperbolas, and parabolas.