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What is the formula to find a radius when given the cicumference?
Wiki User
∙ 12y ago
circumference=pi * diameter
radius= 1/2 diameter
Wiki User
∙ 12y ago
lenpollock
Remember
C = 2 pi r
Algebraically rearrange
r = C / (2 pi)
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What is the formula to find the area of a circle with with a diameter?
if you are given a diameter divide it by two to get the radius! From then on, it is just simple Pi R Squared
How do you find the radius of a cylinder given only the height?
The radius of a cylinder given only the height could be anything you like.
How do you find radius of curvature if focal length is given?
radius of curvature = 2Focal length
How do you find the formula of area of a circle?
pi multiplied by the radius squared
How do you find the volume of a sphere when the radius is 10?
Use this formula when the radius is known: V = 4/3(PI*r3)
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
How do you find the radius if you dont know the diameter but you know the cicumference?
Dividing the circumference by 2*pi will give the value of the radius.
How do you find cicumference with only knowing the radius?
To find the circumference of a circle you multiply pi, usually rounded to 3.12, by the radius. The formula for the circumference of a circle is 2*pi*radius. So double your radius, then multiply by pi, which is approximately 3.14159265 So if I had a circle of radius 2, my circumference would be 2*3.14*2 = 12.56 Good Luck!
If you are given a radius and asked to find the diameter what do you do?
You just multiply the given radius by 2. That is diameter is just double of the radius. This is universal formula.
What is the formula to find the area of a circle with the radius given?
A = pi x radius squared where pi = 3.14
What is the formula to find a area of a circle when given radius?
A = pi x radius2
What is cicumference in math?
A circumference is the distance around a circle. To find a circle's circumference you need to follow the formula: d*pi The d stands for diameter and pi is 3.14. You need to mulitply the length of the diameter by pi for the circumference. Or, if the diameter isn't given, multiply the radius by 2 and then multiply that by pi.
How do you find the radius of a circle when the area is given?
-- Take the formula for the area of the circle in terms of the radius . . . A = (pi) R2-- Solve that formula for 'R'. You'll then have a formula for the radius in terms of the area,which is exactly what you're looking for.
What is the formula to find the radius given the are of a circle?
it is square root of the area divided by pi
How do you find the cicumference of a circle whichout knowing its area radius or diameter?
Given is a circle. Not known is its area A. Not known is its radius r. Not known is its diameter d. You want to calculate its circumference C. Impossible. It cannot be calculated. The only other way is to measure it with a tape measure.
The radius of a sphere is given by the formula r 0.7 5V 13 where V is its volume Find the radius of a spherical tankthat has a volume of 32 3 cubic meters?
What is the radius of a sphere is given by the formula r 0.7 5V 13 .that has a volume of 32 3 cubic meters where V is its volume. Find the radius of a spherical tank
Find Circumference of a circle if the area is 400π m2?
pi*r2 = 400*pi Therefore radius = 20 meters Cicumference = 2*pi* radius = 40*pi meters
