# Finding area of a circle

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## 4 Ways to Calculate the Area of a Circle

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

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## Area Of A Circle

Area of a circle = π * (d/2) 2 Where: π is approximately equal to 3.14. It doesn't matter whether you want to find the area of a circle using diameter or radius - you'll need to use

## Circle Calculator

Area of a circle formula The formula for the area of a circle is π x radius2, but the diameter of the circle is d = 2 x r 2, so another way to write it is π x (diameter / 2)2. Visual on the figure below:

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## Circle Formulas For Diameter, Area and Circumference With Examples

As we know, the area of a circle is πr2, where r is the radius of the circle and π = 22/7 or 3.14 . Since π is a constant, we need to take only the radius value as input. We can import the value

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## Area of a Circle Calculator

How to Calculate the Area. The area of a circle is: π ( Pi) times the Radius squared: A = π r2. or, when you know the Diameter: A = (π /4) × D2. or, when you know the Circumference: A = C2 / 4π.
Area of a Circle

Welcome to How to Find the Area of a Circle with Mr. J! Need help with finding the area of a circle? You're in the right placeWhether you're just starting o

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