Calculate the Area of a Circle

www.mathgoodies.com/lessons/vol2/circle_area.html

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.

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

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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":.

www.calculatorsoup.com/calculators/geometry-plane/circle.php

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 ...

www.khanacademy.org/math/geometry/hs-geo-foundations/hs-geo-area/v/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.

www.calculateme.com/cArea/AreaOfCircle.htm

This calculator will calculate the area of a circle given its radius, using the famous
formula area = pi x r squared.

www.calcunation.com/calculator/circle-area.php

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

www.basic-mathematics.com/area-of-a-circle-calculator.html

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

www.virtualnerd.com/pre-algebra/perimeter-area-volume/circles/circle-sector-area-examples/circle-area-from-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.