It is: pi*5.52 = 95.033 square inches to 3 decimal places
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Area = (pi) x (1/2 of the diameter)2 11-inch diameter ==> 95.033 square inches of area (rounded)
A circle with a diameter of 11 inches has an area of 95.03 square inches.
Its radius is 11 feet and so its diameter is 2*11 = 22 feet
Using 3.14 as Pi the area of circle is: 94.985
Circumference of a circle is pi multiplied by the diameter. If the diameter of the circle is 11 ft, the circumference is: 3.14 x 11 ft = 34.54 ft