The formula to find area is you do the radius squared times pi or 3.14
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The formula to find the area of a circle is pi x the radius squared.
By using the formula: area of circle = pi*radius2
The area of a circle = Pi*r2 where r is the radius and Pi is approximately equal to 3.14.
There is none because a circle has no volume but the area of a circle is pi*radius^2
Area of circle can be computed using formula is A = πr2 , where, A = represented is Area of circle, π = its constant, call it as pie and value is 22/7 i.e 3.142, r = Radius of circle, which has to be squared or doubled to get area of circle.