If 6 inches is the radius, replace it in the formula: A=pi x radius2. If 6 inches is the diameter, divide it by 2 first, to get the radius.
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12.5664 Sq.In.
A circle with a 14 inch diameter has an area of 153.9 sq inches.
113 1/7
A 1.25-inch diameter circle contains 1.227 square inches.
formula used is (pi)x(radius squared)= square inches (3.14)x(5x5)= 78.5 square inches