Area = pi*radius2
A = Pi*R-squared
Pi * R^2
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Area formula for circle= --,,- r 2
The formula to find the area of a circle is pi x the radius squared.
There is no specific formula for a sector of a circle. There is a formula for its angle (at the centre), its perimeter, its area.
The formula for the area of a circle is: Area = (pi) x (Radius)2 . When you know the radius of the circle and you use it to calculate the area of the circle, the result will be equal to (pi) x (Radius)2 .
Area of a circle = pi*radius2 and measured in square units