### What is Sphere?

A sphere is a geometrical three dimension round object. Sphere is a 3-dimensional circle. Every point on the surface is the same distance from the center. Here, you will learn Sphere | Hemisphere | Properties of Sphere.

A sphere is a solid contained by one curved surface which is such that all the points on it are equidistance from a fixed point within it. A fixed point known as centre. Any line drawn from the centre to the surface is known as a radius. ### Surface Area of Sphere

The surface area of a sphere is the total area of the surface of a sphere

Surface Area = 4 x π × radius2

Area of Rectangle = 4πr2 square units.

Surface Area of a Sphere by diameter
d = 2r units
Area = 4π(d2)2
=π x d2
Surface Area = π(d2)2

Where,
“d” is the diameter

### Volume of a Sphere

The amount of space occupied by the object three-dimensional object called a sphere is known as the volume of the sphere.

Volume = 43 x π × radius3

### Equation of a Sphere

In analytical geometry, the sphere with radius “r”, the locus of all the points (x, y, z) and centre (x0, y0, z0), then the equation of a sphere is given as

(x -x0)2 + (y – y0)2 + (z-z0)2 = r2

### Properties of Sphere

• The opposite sides of a rectangle are parallel.
• A sphere is perfectly symmetrical
• It is not a polyhedron
• All points on the surface are the same distance “r” from the center
• It has no side or corner
• It has constant mean curvature
• It has a constant width and circumference.

### Hemisphere

A hemisphere is half of a sphere. A plane through the centre of a sphere divides the sphere into two qual part. Each part is known as hemisphere . Volume = 23 x π × radius3

Curved surface Area= 2 x π × radius3

Total surface Area= 3 x π × radius3

I hope, this article will help you lot to understand the Sphere | Hemisphere | Properties of Sphere, If you still have any doubts and problems with any topic of mathematics you can ask your problem in the Ask Question section. You will get a reply shortly.

I hope you have learned it properly.

## 7 thoughts on “Sphere | Hemisphere | Properties of Sphere”

1. Tom Michalowsky says:

I am very impressed. I found a lot of informative stuff in your article. Keep it up. Excellent JOB Thx!.

2. Pianino.XMC.pl says:

Many thanks for posting this particular content, We were searching for it on multilple web sites and also merely identified a fair degree of details here.

3. Podatki Blog says:

Im a huge fan already, man. Youve done a brilliant job making sure that people understand where youre coming from. And let me tell you, I get it. great stuff and I cant wait to check out more of your blogs. What youve got to say is important and needs to be check out.

4. www.Links.M106.COM says:

Perfect piece of work you have done, this website is really cool with great info .

5. Pianoforte says:

Nice post, I just passed this on to a cousin who was doing a little research on this. Thanks again.

6. EKONOM.XMC.PL says:

I can see that you are putting a lots of efforts into your blog. Keep posting the good work.Some really helpful information in there. Bookmarked. Nice to see your site. Thanks