# How do you find the radius If the circumference is given?

Table of Contents

## How do you find the radius If the circumference is given?

To find the radius from the circumference of a circle, you have to do the following:

- Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter.
- Divide the diameter by 2.
- There you go, you found the circle’s radius.

**What is the radius of the circumference is 6?**

Rounded to 0.95 units.

**What is the circumference of R 5?**

A circle with a radius of 5 units has a circumference of 31.416 units.

### What is the radius of 8?

Since the diameter is 8 inches, then we can do 82 to find the radius, or 4 inches.

**What is the circumference if radius is 5cm?**

Explanation: The formula for the circumference of a circle is 2πr so all we have to do is plug in 5 for our radius: 2π(5) which can be simplified to 10π .

**What is the diameter of 8 inch circumference?**

25.12 inches

We can see that the diameter of the circle is 8 inches. Let’s put this number into the formula. The circumference of a circle that has a diameter of 8 inches is 25.12 inches.

## What is difference between radius and circumference?

The radius of a circle denoted by r is the distance of the line from the centre of the circle to the outer edge, and the circumference of a circle is the perimeter of the circle that means a measure of the outer round length of the circle.

**What is a diameter of a circle?**

2 x radiusCircle / Diameter

**How to find the radius from the circumference of a circle?**

To find the radius from the circumference of a circle, you have to do the following: Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter. Divide the diameter by 2. There you go, you found the circle’s radius.

### What is the circumference of a 12 inch circle?

What is the circumference of a 12 inch diameter circle? The circumference of a 12 inch circle is 37.70 inches. Using the formula C = πd where d is the diameter, we have. Circumference = πd = 3.14 x 12 = 37.70. Diameter.

**How do you find the radius of a surface area?**

Sphere surface area to radius calculator. User Guide. This tool will calculate the radius of a circle from the circumference, and will convert different measurement units for circumference and radius. Formula. The formula used to calculate the circle radius is: r = C / (2 · π) Symbols. r = Circle radius. C = Circle circumference.

**What is the proportion between radius and diameter?**

Circumference to diameter. You have probably noticed that, since diameter is twice the radius, the proportion between the circumference and the diameter is equal to π: C/D = 2πR / 2R = π. This proportion (circumference to diameter) is the definition of the constant pi. It is used in many areas, such as physics and mathematics.