Area of a circle calculator is used to calculate the area of a circle if the radius of curvature is known. It is an online tool for easy calculation. Circle is a geometrical shape with locus of all points are situated at a fixed distance from the center. The distance between two points on the locus through the center is known as the diameter of the circle. Half of the diameter is nothing but the radius. The equation to find out the area of a circle is given below.
Where r is the radius of curvature
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