Using 3.14 as Pi the area of circle is: 254.34
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The area of a circle whose diameter is 18 inches is: 254.5 square inches.
254.47radius:= diameter/2= 18/2= 9Area of circle:= pi * radius2= 3.1416 * 92= 3.1426 * 81= 254.47
circumference = pi*18 cm area = pi*92 square cm
Using 3.14 as Pi the area of circle is: 254.34
A circle with a radius of 18 centimeters has an area of 1017.88 square centimeters.