Area = (pi) (radius)2 = 25 pi = 78.54 square units (rounded)
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The area of a circle with a radius of 14.4 is 651.4
Area of a circle = pi*radius squared
The area of a circle of radius 21 is 1386
A circle with a radius of 135 units has an area of 57,255.53 square units.
If the area of a circle is 40.7 the radius is: about 3.6 (3.599)