The formula for the area of a circle is pi times the radius squared, so if the radius is 6 inches, that is pi times 36 square inches. Pi is approximately 3.1415, which gives us an area of 113.094 square inches. If that is not exact enough, pi has been worked out to thousands of decimal places, and can be easily looked up on Google.
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3850m is the area of the a circle whose radius of 7meaters
A circle with a radius of 11m has an area of ~380.13 m2
The area of a circle, if the radius is 5 cm, is: 78.54 cm2
A circle with a radius of 13 units has an area of 530.93 square units.
Equation for the area circle = pi x radius squared If the area is 144pi, then you need to find the square root of 144, which is 12. Therefore, radius = 12