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Calculate the Area of a Circle
Enter the radius:

Area of a Circle - Math Goodies


is the radius. Let's look at some examples involving the area of a circle. In each of the three examples below, we will use Pi = 3.14 in our calculations.

How to Calculate the Area of a Circle (with Examples) - wikiHow


Six Methods:Calculate Area ExamplesSample CalculatorArea of the Circle Finding the Area of a SectorSpecial circlesMeasuring the Diameter of Round Physical ...

Area of a Circle - Math is Fun


Area of a Circle. Calculator Enter the radius, diameter, circumference or area of a Circle to find the other three. The calculations are done "live":.

Circle Calculator - Calculator Soup


Calculate the area, circumference and radius of circles. Given any 1 known variable of a circle, calculate the other 2 unknowns. Circle formulas and geometric ...

Area of a circle | Area | Geometry foundations | High school ...


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.

Calculate the Area of a Circle - Basic mathematics


5 days ago ... To calculate the area of a circle using the value of pi is what this lesson will teach you.

Area of a circle calculator - Basic mathematics


6 days ago ... Given the radius, use this area of a circle calculator to find the area for any circle.

Circle Area Calculator - CalcuNation Online Calculators


With this circle calculator you can find the area of a circle to help with your geometry problems.

How Do You Find the Area of a Circle if You Know the Diameter ...


Note: If you have the diameter of a circle, you can use it to find the area of that circle. Just plug that value into the formula for the area of a circle and solve.