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How do you find the radius of a cone when you only know the circumference?
Wiki User
∙ 11y ago
Since the "cone" bit only comes into play for the volume and surface area you don't have to worry about that part. That means you can treat is as a plain circle. So c=pi*2r. So, divide by 2 pi.
Wiki User
∙ 11y ago
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What formula is used to find the circumference when you know the radius?
Circumference=2*pi*radius
How do you find the radius of a circle if you know the circumferance?
radius = circumference/2*pi
How do you find the length of of the radius of a circle?
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
How do you find the radius of a circle if you dont know the circumference?
Well, if you know the diameter you divide that by two to get the radius.
How do you find the radius of you know the circumfrerence?
Divide the circumference by 2*pi will give the radius of the circle.
What formula is used to find the circumference when you know the radius?
Circumference=2*pi*radius
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 raduis if you know the circumference?
Radius (not raduis) =circumference/(2*pi)
How do you find the volume of a cone knowing only the height and circumference?
Volume of a cone = (1/3)*(area of base)*(height). Area of a circle = pi*radius². But you know circumference. Circumference = 2*pi*radius. Rearrange: radius = C/2/pi. Substitute this in for radius above: Area = pi*(C/2/pi)² = C²/(4*pi). Volume = C²*h/(12*pi) [C is circumference, h is height]
How do you find the radius of a circle if you know the circumfrence?
radius = circumference/(2*pi)
How do you find the radius of a circle if you know the circumferance?
radius = circumference/2*pi
How do you find the length of of the radius of a circle?
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
What is the equation for finding the radius of a sphere when you know the circumference?
The equation for circumference is C=2(pi)(r) where C is the circumference and r is the radius. You can find the radius by plugging in the circumference into this equation and solving the equation.
How do you find the radius of a circle if you dont know the circumference?
Well, if you know the diameter you divide that by two to get the radius.
The radius of the circle is 5inches what is the circumference?
The circumference of a circle that has a radius of 5 inches is 10 X pi or approximatly 31.415926535897932384626433832795. If you know the radius you can find the circumference by multiplying it by 2(pi)
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!!!
