380. 1 cm2 is the area of the circle.
See: the area of a circle is pi (3.14) times radius2 .
3.14 x 121 = 380.1
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The radius of a circle with an area of 380 sq inches is 11 inches.
A = 380 square feet.
Using 3.14 as Pi the area of circle is: 0
Its radius is 11 feet and so its diameter is 2*11 = 22 feet
The circumference of a circle with a radius of 11 is about 69.12The general formula is circumference = (2 x radius) x pi. Therefore, in this instance, the answer is 2 x 11 x pi = about 69.12.