To find the area of a circle you do pi (3.14) multiplied by the radius squared.
The radius is half of the diameter: 11 / 2 = 5.5in
The radius squared is 5.5^2 = 30.25
Then take the squared radius and multiply that by pi 30.25 * 3.14 = 94.985
So the area of the circle is about 94. 99 in.
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radius = 1/2 diameter = 1/2 * 11 = 5.5 ins
area = pi * r^2 = 3.14 * 5.5^2 = 94.99 in^2 to nearest hundredth