Area = pi*182 = 1017.876 square mm to 3 decimal places
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The area of a circle, in terms of pie, with a diameter of 36 is: about 324pi
Area of a Circle = (pi)(r^2) Diameter = 2r If the diameter of the circle is 12, then the radius has to be 6. If the area of a circle is pi times the square of the radius, and the square of 6 is 36 (6x6), then the area of the circle is 36pi.
A 36-inch diameter circle has an area of: 1,017.9 square inches.* * * * *which is 7.07 square feet.
The radius of a circle with the area of 36 is 3.385
The answer depends on what is 36 cm: the radius, diameter or some other aspect of the circle.