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

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Related questions

What is the circumference of a circle with a radius of 45 units?

A circle with a radius of 45 units has a circumference of 282.74 units.


What is the what is the radius of a circle with a circumference of 283?

Radius is 45.


What is the radius and diameter if the circumference is 45 feet?

divide the circumference (c) by pi (3.14) and then you have diameter. you will have to measure the radius by hand.


What is the radius and circumference of coin if the diameter is 45 mm?

The radius of a coin with diameter of 45 mm is : 45/2 = 22.5mm The circumference of a coin with diameter of 45 mm is 45*pi = 141,372mm rounded to 3 decimal places


What is the radius if the circumference is 45 feet?

divide it by 3.141592653 then divide it by 2


How do you convert basic circumference into radius?

Circumference = 2*pi*radius Radius = Circumference/(2*pi)


Radius from circumference?

The radius is 1/2 of the circumference.


What is the formula for finding the circumference with radius?

the circumference is two times the radius, or 2r. so if the radius was 3, the circumference would be 6. if the radius was 4, the circumference is 8.


How do you find a circumference of a circle if the radius is a fraction?

The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.


How do you find radius with only the circumference?

Circumference = 2*pi*radius So Radius = Circumference/(2*pi)


When given radius how do you find the circumference?

Circumference = 2 * radius * pi (where pi is approx = 3.14159)So Radius = Circumference / (2 * pi)


What is the circumference when the radius is r?

To find the circumference of a circle, use the equation: Circumference = 2*π*radius so when the radius is r, the circumference is 2πr