# How do you find the radius of a sphere?

## How do you find the radius of a sphere?

How to Calculate the Radius of a Sphere?

- Radius = Diameter / 2. When the surface area is given, the formula used for the radius of a sphere is:
- Radius = ⎷[Surface Area / (4 π)] When the volume is given, the formula used for the radius of a sphere is:
- Radius = ³⎷[3 * Volume / (4 π)]

**How do you find the volume of a sphere given the circumference?**

Sphere Formulas in terms of radius r:

- Volume of a sphere: V = (4/3)πr.
- Circumference of a sphere: C = 2πr.
- Surface area of a sphere: A = 4πr.

### What is the radius of a sphere surface area?

Therefore, the Surface Area of a Sphere with radius r equals 4πr2 .

**What is the diameter of the sphere?**

The Diameter of a circle or sphere is equal to 2 times the Radius.

## What is the volume of sphere with a radius of 18 units?

24429.02 is the volume of a sphere with a radius of 18 units.

**What is the formula of mass in physics?**

One way to calculate mass: Mass = volume × density. Weight is the measure of the gravitational force acting on a mass. The SI unit of mass is “kilogram”.

### How do you calculate the diameter of a sphere?

The diameter of a sphere formula with volume is, d = (6V/π)^(1/3), where d is the diameter of the sphere and V is its volume. Alternatively, we can substitute the value of V, in the volume formula, V = (4/3) π r3, solve it for r, and make it double to find the diameter.

**Is radius half the diameter of a sphere?**

Find the radius if you know the diameter. The radius is half the diameter, so use the formula r = D/2. This is identical to the method used for calculating the radius of a circle from its diameter. If you have a sphere with a diameter of 16 cm, find the radius by dividing 16/2 to get 8 cm.

## How to calculate the volume of a sphere?

Formula 1 r = Sphere radius 2 V = Sphere volume 3 π = Pi = 3.14159…

**Which is true about the radius of a sphere?**

Radius of the sphere is nothing but the distance from the exact center to any point covering the outer edge of the sphere. It is abbreviated as ‘R’ or ‘r’. Radius is important in finding the circumference, surface area, and/or volume of sphere.

### How big is the sphere of a soccer ball?

Enter the radius of the sphere. For size 5 soccer ball radius should be equal to 4.3-4.5 in, let’s take 4.4 in. The sphere volume appeared, as the circumference. They are equal to 357 cu in and 27.6 in. Assume that for the basketball we don’t know the radius. Type in the circumference instead. For basketball size 7 the typical one is 29.5 in.

**How to calculate the volume of a soccer ball?**

Let’s check! Enter the radius of the sphere. For size 5 soccer ball radius should be equal to 4.3-4.5 in, let’s take 4.4 in. The sphere volume appeared, as the circumference. They are equal to 357 cu in and 27.6 in. Assume that for the basketball we don’t know the radius. Type in the circumference instead.