The area is (pi) x (radius)2 , and the radius is 1/2 of the diameter.
This is all true for any circle.
Using 3.14 as Pi the area of circle is: 113.03999999999999
Using 3.14 as Pi the area of circle is: 226.865
Using 3.14 as Pi the area of circle is: 0.44156249999999997
Using 3.14 as Pi the area of circle is: 113.03999999999999
Using 3.14 as Pi the area of circle is: 78.5
The circle has an area of ~314.159 square yards.
A circle with a radius of 20 yards has an area of 1,256.64 square yards.
To find area of a circle using diameter, you use this formuler. Area=pi(diameter/2)(diameter/2)
The area of a circle if the diameter is 108 using 3.14 for pi is: 9,156.24 square units.
Using 3.14 as Pi the area of circle is: 530.66
Using 3.14 as Pi the area of circle is: 66.44239999999999
Using 3.14 as Pi the area of circle is: 19.625
Using 3.14 as Pi the area of circle is: 1256.0
Using 3.14 as Pi the area of circle is: 132.665
Using 3.14 as Pi the area of circle is: 27.325850000000006
Using 3.14 as Pi the area of circle is: 7084.625
Using 3.14 as Pi the area of circle is: 113.03999999999999