Technically, a circle is a 2-dimensional object, so the question should read "volume of a sphere" OR "Area of a circle". The formula to work out the volume of a sphere is: 4/3 pi x r3, where "r" is the radius of the sphere. To find the area of a circle: pi x r2.
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circle does not have volume
The formula that expresses the volume of a circle isV = 0 .A circle is a 2-dimensional (flat) shape, so it has no volume.
A circle is two dimensional, it has area but not volume.
The area of a circle is 'pi' multiplied by the square of the circle's radius.The volume of a circle is zero.The volume of a sphere is (4/3 pi) multiplied by the cube of the sphere's radius.
There is none because a circle has no volume but the area of a circle is pi*radius^2