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What formula is used to find the circumference when you know the radius?
Wiki User
∙ 2010-06-11 21:01:14
Circumference=2*pi*radius
Wiki User
∙ 2010-06-11 21:01:14
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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 used to find the circumference when you know the radius?
A=pi times r times r
I know how to find the circumference of a circle but I just don't know how to find the area can someone tell me how without givin me a formula cuz I can only figure out the formula for circumference?
Area = radius x radius x pi. (Radius is half the diameter and pi is near enough 3.14 )
What is the formula to find the radius?
It depends on the information that you do have. If you know the diameter, the circumference or the area the equations are relatively straightforward.
What is the radius of a sunflower with a circumference of 46 cm?
The formula is: circumference = 2 x pi x radius. As always when you use a formula, plug in the values you know and solve for the ones you don't. So plug in 46 for the circumference and solve for the radius. (You'll get that the radius = (circumference)/(2pi)).
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 diameter of a circle when the circumference is given?
the Circumference is pi times 2 times radius If you know circumference then you can find the radius. once you know the radius just multiply by 2 to find the diameter.
How do you find diameter and circumference?
Where C=circumference, r= radius and d=diameter To find circumference: C=2 x pi x r or you can use the formula C=pi x d To find diameter just multiply the radius by 2 if you know what the radius is. If you do not know the radius, but you know the circumference and need diameter use the following formula: C/pi=d Happy Computing!!!
How do you find the circumference if you know the radius?
Circumference = 2*pi*radius
What is the formula used to find the circumference when you know the radius?
A=pi times r times r
I know how to find the circumference of a circle but I just don't know how to find the area can someone tell me how without givin me a formula cuz I can only figure out the formula for circumference?
Area = radius x radius x pi. (Radius is half the diameter and pi is near enough 3.14 )
What is the formula for finding the circumference of a circle when you only know the radius?
Circumference = 2 x pi x radius
What is the formula to find the radius?
It depends on the information that you do have. If you know the diameter, the circumference or the area the equations are relatively straightforward.
What is the radius of a sunflower with a circumference of 46 cm?
The formula is: circumference = 2 x pi x radius. As always when you use a formula, plug in the values you know and solve for the ones you don't. So plug in 46 for the circumference and solve for the radius. (You'll get that the radius = (circumference)/(2pi)).
How do you find the circumference if you know radius?
Circumference of a circle = 2*pi*radius
When you know the circumference of a circle how do you find the diameter?
If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)
How do you find the circumference of a circle when you know the area?
If you know the area, you can find the radius --> A = (pi) * r^2 If you have the radius, you can find the circumference --> C = (pi) * 2 * r
