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To find the area of a circle knowing only the circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Square the circumference, then divide it by 4π to get the area.

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5mo ago
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11y ago

If circumference is C then the radius is C/(2*pi)

and then area = pi*r2 = C2/(4*pi)

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Q: How do you find the area of a circle knowing only the circumference?
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Related questions

How do you find the area of a circle without knowing the radius?

If the circumference or diameter is given then you can find the radius or simply measure the distance from the centre of the circle to the circumference.


How do you find the circumference of a circle without knowing the area?

To find the circumference of a circle, you need only know the radius or diameter of the circle. The circumference of a circle is calculated as 2 x Pi x radius OR Pi x diameter. Pi is approximately 3.1415926.


How do you find the circumference of a circle without knowing the radius and area?

You will have to measure some part of the circle. As long as you have absolutely no information about a circle, you can't do any calculations.


Find the circumference of a circle with an area of 82?

The circumference is: 32.1


How do you find out the the diameter of a circle if knowing the circumference?

Divide the circumference by the value of Pi - that will give you the diameter.


How do you find diameter knowing the circumference?

Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.


Find the area of a circle when the circumference is 10in?

The area of a circle when the circumference is 10 inches is: 7.96 square inches.


A circle has an area of 962pcm2 Find the circumference of the circle?

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What is the circumference and area of a circle that has a radius of 4?

To find the circumference of a circle then multiply pi (3.14159265...) by the diameter of the circle. To find the area then multiply pi by the radius squared.


How do i find circumference and area of a circle?

Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle = pi*radius squared


How do you find the circumference if you have the area of a circle?

Area of a circle = 3.14 * r2 Thus, radius, r = root of ( Area of a circle / 3.14 ) --------- equation 1 Circumference of circle = 2 * 3.14 * r Therefore, from (equation 1), Circumference = 2 * 3.14 * root of ( Area of a circle / 3.14 ). In a nutshell, first find the radius and then the circumference.


How do you find the area of a circle after you've got the circumference?

Area of the circle = (circumference)2 / (4 pi)Area = 0.0796 circumference2(rounded)