what is a diameter of a circle
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Answer:A=πr2
Step-by-step explanation:A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant. Wikipedia
Area: π× (radius)²
Circumference: 2π x radius
Diameter: 2 x radius
Number of vertices: 0
Number of edges: 0
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Answer:
longest chord of a circle is called diameter.
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