Answer:
A circle is a simple closed shape. It is the set 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 so that its distance from a given point is constant Area: π× (radius)²
Circumference: 2π x radius
Diameter: 2 x radius
Number of vertices: 0
Number of edges: 0
sorry