The area of a 7-inch circle is: 38.48 square inches.
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Area of any circle = pi*radius squared
I assume that a 14 inch circle is a circle 14 ionches in diameter. Use the formula Area = Pi x radius of the circle X radius of the circle The radius is half the diameter. Pi is 3.14159 (appx) So the area = 3.14159 X 7 X 7 = 153.937 square inches. Or approximately 154 square inches
It is: pi*3.52 = 38.485 square inches rounded to three decimal places
The area of a circle with a 7-foot diameter is: 38.48 square feet.
Using 3.14 as Pi the area of circle is: 153.86