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# How do you find the raduis of a circle knowinng only the circumference?

Updated: 12/7/2022

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Q: How do you find the raduis of a circle knowinng only the circumference?
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### What is the formula to find the circumference of a circle with the raduis given?

Circumference of a circle: 2 x pi x radius.

### How do you find the circumference of a circle when the raduis is a fraction?

The circumference is 2*pi*radius (not raduis) and this formula is applicable whether the radius is an integer, a fraction, or even an irrational number.

### How do you find the circumference of a circle if you the raduis?

Circumference = 2*pi*r where pi = 3.14159 (approx) and r is the radius.

### To the nearest hundredth what is the radius of a circle with a circumference of 7?

to find the raduis of any circle, divde the diameter by 2. in this case, the answer would be 3.50

### How do you find the perimeter of a half circle with the raduis of 7 inches?

The perimeter of a circle is called the circumferenceTo find the circumference of a circle you do 2 times pi times radiusC = 2 * 3.14159 * 7 = 43.98inchesSince this is a half circle you have to take half of the circumference...you answer is 21.99inches

### How do you find the raduis of a circle if you know the density?

You cannot.A circle has no mass nor volume and so the concept of density is not appropriate.Also, the word is radius, not raduis!

### How do find the circumference of a circle?

The formula; 2 * Pi * Radius = circumference Will calculate the circumference of a circle.

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

find the radius of a circle with circumference of 42.1

### How do you find the perimeter if you already know the circumference of a circle?

The circumference of a circle is the length of the circle's perimeter.

### 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 DIAMETER if given the circumference OF A CIRCLE?

Diameter of a circle = circumference/pi