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The formula given is schools is circumfrence=2(pi)radius. But since I am a rebel, I use diameter times pi. This works since diameter equals 2 times radius. If you don't know, pi exactly equals 22 divided by 7. Or 3.14159.....as for an example, if you have a circle with diameter of 2, then you plug it in the formula. Then get your answer or 2(pi).

Q: How do you find the circumference of a circle give an example to?

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Multiplying the diameter by pi (approx 3.1416) will give you the circumference of the circle.

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

Divide its circumference by 2*pi which will give the radius of the circle. Area of the circle then is pi*radius squared

Divide the circumference by 2*pi will give the radius of the circle.

The circumference of a circle is the length around it.

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Multiplying the diameter by pi (approx 3.1416) will give you the circumference of the circle.

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

Divide its circumference by 2*pi which will give the radius of the circle. Area of the circle then is pi*radius squared

Divide the circumference by pi, and that will give you the diameter. Then take half of the diameter (the radius), and plug it into the formula for the area of a circle (A=πr²)

it depends on what the radius is if they give you one

Doubling the radius will give the diameter and times this by pi will give the circumference of the circle.

You multiply the diameter by pi, which is approximately 3.1416.

Divide the circumference by 2*pi which then will give you the radius and use pi*radius2 to find the area of the circle

You divide the circumference by Pi (about 3.1416). This gives you the diameter. Divide the diameter by two to get the radius.

Divide the circumference by 2*pi will give the radius of the circle.

They would have to give you enough information to eventually get the diameter. If they gave you the area of a circle and asked for the circumference, you can determine the radius, and from the radius the diameter, and then the circumference. If they said "What is the circumference if the area of a circle is 36pi?" Area of a circle is pi*r2, which would give us a value for r = 6 Diameter is 2*r, or = 12. Circumference is d*pi, or 12pi

The circumference of a circle is the length around it.