The area of a circle is
pie(22/7) or (3.14) times R2
R = the radius of the circle (1/2 of the diameter)
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A circle doesn't have a surface area because it is a 2D object. The area of a circle is = pi r2. if you mean the surface area of a sphere it is = 4 pi r2
There can be no such formula in general. A formula will exist if the area is a regular polygon (or a circle).
That depends what kind of figure you are talking about. The formula for the area of a circle is quite different from the area of a rectangle, for example.That depends what kind of figure you are talking about. The formula for the area of a circle is quite different from the area of a rectangle, for example.That depends what kind of figure you are talking about. The formula for the area of a circle is quite different from the area of a rectangle, for example.That depends what kind of figure you are talking about. The formula for the area of a circle is quite different from the area of a rectangle, for example.
The surface area of a circle can be found using the formula A = πr^2, where A is the area and r is the radius of the circle. Simply square the radius and multiply it by π to calculate the surface area.
Assuming that 3.14 is pi, then most likely you're looking for the surface area of a circle, which is pi x r2.