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C=3.14*d<----diameter d=r*2

ex: what is the circumference of a circle if the radius is 4cm?

4*2=8cm

3.14*8=25.12cm

c=25.12cm

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Q: How do you find the circumference an you have radius?
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Related questions

How do you find the radius if circumference is given?

Divide the circumference by 2PI to find the radius. ( C = 2PI*Radius)


How do you find radius with only the circumference?

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


How do you find the radius of a circle with the circumference in terms of pi?

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How do you find the radius if you the the circumference?

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What is the circumference when the radius is r?

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How do you find circumference using radius'?

Circumference of a circle = 2*pi*radius


When given radius how do you find the circumference?

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


How can you find the diameter and the radius if the circumference is given?

Diameter = circumference/pi Radius = circumference/2*pi


How do you find the radius when you have the circuference?

circumference = pi * 2radius (diameter) so to find radius you use circumference/(2 x pi) this will find radius ----


How do you find the diameter and then the circumference if you have the radius?

Diameter = radius * 2 Circumference = pi * diameter.


What formula is used to find the circumference when you know the radius?

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How do you find the circumference by the radius?

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