Area = pi*radius squared
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A circle with a radius of 18 centimeters has an area of 1017.88 square centimeters.
If it is a circle you are referring to the Area if the circle would be (pi)x(r^2) and the radius is 6 so the answer would be 36(pi)
area of circle is πr² (3.14)(6)² 3.14 * 36 = 113.45 cm² ■
6 inches
The radius of a circle with a circumference 36 inches is: 5.73 inches.