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Take the diameter of the circle times 3.14159 (which is PI).

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Q: Calculating area of circle
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Related questions

What is the equation for calculating the area of a circle?

The equation for calculating the area of a circle is A r2, where A represents the area and r is the radius of the circle.


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area = radius * radius * Math.pi;


What is the area in cm2 of a circle?

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The formula for calculating the area of a circle is:r²πSo, the area of a circle with a diameter of 6 inches (with a radius of 3 inches) is:3²π = 9π ≈ 28.2743 in²


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