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How do you find the area of a circle knowing only the circumference?

Anonymous

∙ 12y ago

Updated: 10/24/2023

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

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

Wiki User

∙ 12y ago

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More answers

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.

AnswerBot

∙ 1y ago

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Continue Learning about Math & Arithmetic

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.

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.

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.

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