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Since the circumference is Pi times the diameter then divide the circumference by Pi (3.14159) to get the diameter

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17y ago

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How do you find pi using a equation?

If: circumference = pi*diameter Then: pi = circumference/diameter


If you Give a circle with a diameter of 4 what is the circumference?

the equation for the circumference of a circle is 2*radius*pi, or since the radius is half of the diameter 2*radius=diameter, we can simplify the equation to the circumference of a circle=diameter*pi


If the diameter of a circle is 5 what is the circumference?

The equation for determining the circumference of a circle is circumference = pi x diameter. So if the diameter is 5, then the circumference is pi * 5 = 15.71


What is the equation of Pi?

there is no equation of Pi Circumference divided by diameter


How does the circumference of a circle change if you double its diameter?

Since the equation for circumference is pi*d then if you double the diameter the circumference will be doubled.


What is the equation for determining radius of a circle if you have the circumference?

Circumference = Diameter multiplied by Pi Diameter = Circumference divided by pi Radius = Diameter divided by 2.


How do you write an equation while using circumference?

Diameter = Circumference/pi


What is the equation to get circumference of a circle if you have diameter?

Circumference = Pi x Diameter (Pi equals 3.14)


Which equation can be used to show the relationship between the circumference C and the diameter d of a circle?

The relationship between the circumference ( C ) and the diameter ( d ) of a circle is expressed by the equation ( C = \pi d ), where ( \pi ) (approximately 3.14159) is a constant that represents the ratio of the circumference to the diameter of any circle. This equation indicates that the circumference is directly proportional to the diameter, with ( \pi ) as the proportionality constant.


What is the circumference of a 29 inch tire?

The equation for circumference is Pi(diameter), so the exact value of the circumference of a tire with a 29 inch diameter is 29pi.


How many diameters are in a circumference?

Pi, or 3.14159... Using the equation Circumference = pi * diameter.


What is the mathematical equation you generally use to find the circumference of a circle when you know the diameter?

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