Circle, Circle Geometry, Radius & Diameter

Circle, geometrical curve, one of the conic sections, consisting of the set of all points the same distance (the radius) from a given point (the centre). A line connecting any two points on a circle is called a chord, and a chord passing through the centre is called a diameter. The distance around

Geometry

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Circle Geometry

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CalcKit - Circle Calculator

Circle geometry, Plane geometry, ACT Math

How to Find the Diameter, Radius & Chord of a Circle, Geometry