# How do I find the diameter of a circle given the area?

## How do I find the diameter of a circle given the area?

Divide the area (in square units) by Pi (approximately 3.14159). Take the square root of the result (Example: 310.56). This is the radius. Now double the radius to get the diameter (Example: 621.12 meters).

**How do you calculate diameter?**

How to Calculate Diameter?

- Diameter = Circumference ÷ π (when the circumference is given)
- Diameter = 2 × Radius (when the radius is given)
- Diameter = 2√[Area/π] (when the area is given)

**What is the diameter of the given circle?**

The distance from the center to a point on the circle is called a radius. Every circle has an infinite number of possible diameters. The formula for finding the diameter of a circle is two times the radius (2 * radius).

### How do you find a diameter?

**How do you measure the diameter of a circle?**

If you know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge. If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.

**What is the formula for diameter and radius?**

The diameter is always double the radius. Hence, the formula is derived by dividing the diameter by 2….Question 4: Find the radius of the circle whose circumference is 22 cm.

More topics in Radius Formula | |
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Unit Circle Formula | Circle Formula |

Diameter Formula | Surface Area of a Sphere Formula |

#### How do you calculate a diameter?

The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.

**What is diameter to radius?**

Essentially, the diameter is twice the radius, as the largest distance between two points on a circle has to be a line segment through the center of a circle. The circumference of a circle can be defined as the distance around the circle, or the length of a circuit along the circle.

**How do you measure diameter of a circle?**

Just divide the circumference by π to find the diameter. For example, if your circle has a circumference of 23 inches, the diameter would be 23/π, or approximately 7.32 inches. If you only know the area of the circle, use the formula diameter = 2 x √(area/π).