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Q: What is the formula for circumference using radius?
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What is the formula to calculate circumference using radius?

Circumference = 2*pi*radius


What is the circumference of a 27 acre circle?

To find the circumference of a circle with a given area, you first need to calculate the radius. Since the area of the circle is 27 acres, you can use the formula A = πr^2 to solve for the radius. Once you have the radius, you can then find the circumference using the formula C = 2πr. By substituting the radius into the formula, you can calculate the circumference of the 27 acre circle.


How do you determine the circumference of a circle if you know the radius?

use the formula pi*diameter = circumference and the formula diameter = 2*radius and combine them 2pi*radius = circumference now you have a formula that you can just plug you numbers into. if you have 3 as your radius, then this is how to find the circumference 2pi*3=circumference 6.28*3=circumference 18.84=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 get the radius of a circle from the circumfrance?

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

Related questions

What is the formula to calculate circumference using radius?

Circumference = 2*pi*radius


What is the circumference of a circle that has a radius of 6.74 in?

The circumference of a circle with a radius of 6.74 inches is approximately 42.34 inches. The circumference of a circle is found using the circumference formula: Circumference = 2 * π * radius So, all you have to do is plug in the radius into the formula, and approximate π to be 3.14159.


How do i work out the circumference of a circle from the radius?

The circumference of a circle with a known radius and can calculated using the following formula: C = 2Π(r)


What is the radius of a circle with a circumference of 1000m?

The radius of a circle with a circumference of 1000m is approximately 159.15 meters. This can be found using the formula C = 2πr, where C is the circumference and r is the radius. Rearranging the formula to solve for r gives r = C / (2π). Substituting the given circumference into the formula will give you the radius.


If the area of a circle is 201.06 then the circumference of the circle is?

The formula to find the circumference of a circle is C = 2πr, where r is the radius of the circle. To find the circumference, you first need to find the radius by using the formula for the area of a circle (A = πr^2). Given that the area is 201.06, you can solve for the radius. Once you have the radius, you can plug it into the formula C = 2πr to find the circumference.


How do you find the circumference of a circle using the radius?

Circumference = 2*pi*radius So the radius = circumference/2*pi


How do you determine the circumference of a circle if you know the radius?

use the formula pi*diameter = circumference and the formula diameter = 2*radius and combine them 2pi*radius = circumference now you have a formula that you can just plug you numbers into. if you have 3 as your radius, then this is how to find the circumference 2pi*3=circumference 6.28*3=circumference 18.84=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 get the radius of a circle from the circumfrance?

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


What is the formula that relates circumference and radius?

Read , learn and inwardly digest these two circle eq;n.s C = 2 pi r or C = pi d & A = pi r^(2) Very important when learning circular calculations. Taking the first eq;n C = 2 X pi X r Where C = circumference 2 is a constant pi = 3.141592... ~=~ 3.14 r = radius. NB The three terms on the RHS are MULTIPLIED TOGETHER>


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

Circumference=2*pi*radius


What is the formula to find circumference when you are given the radius?

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