50.2656 square inches The formula to find the area of a circle is ∏r2. Where ∏ is the mathematical constant and r is the radius of the circle. So 3.14 x 42. = 50.27 square cm or yds, (whatever the diameter was in).
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The area of a circle with a diameter of 8 feet is: 50.27 square feet.
The area of a circle with a diameter of 8 centimeters is: 50.27 square centimeters.
50.24
The area is 50.3 square feet.
The radius is about 8 so the diameter = 2*8 = 16 units in length