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Q: How do you find the radius of a circle when only given the circumference?

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Circumference of a circle = 2*pi*radius = 8*pi or 25.13274123 units

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

If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)

Measure the distance from the centre of the circle to its circumference.

Diameter of a circle = circumference/pi

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circumference of a circle = 2*pi*radius or pi*diameter

Diameter of a circle = 2*radius Circumference of a circle = 2*radius*pi

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.

If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)

To find the circumference of a circle the formula is: 2*pi*radius or diameter*pi

Circumference of a circle: 2 x pi x radius.

find the radius of a circle with circumference of 42.1

Divide the circumference by the value of Pi, then halve that result.

Square root (Area/pi) to get the radius Then 2xRadiusxPi= Circumference

That will depend on the length of the radius which has not been given but in general the circumference of a circle = 2*pi*radius or diameter*pi

To find the radius of a circle when given the circumference, you should start with the formula for circumference, which is this: circumference = 2*pi*radius To solve for the radius, you would the have to divide the circumference by 2*pi leaving you with a formula like this: radius = circumference/(2*pi) pi≈3.14159

You multiply the radius by 2. Then you multiply the product by pi (3.14)

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