Sphere

posted on: 18 Apr, 2012 | updated on: 09 Sep, 2012

In Geometry, we studied about lots of geometrical shape and figures which are formed on two dimensional planes. In the geometry some of the figures are available that are represented or formed on the three dimensional plane. A Sphere is a word which comes from the Greek word 'sphaira' which refers to “globe or ball”. A sphere can be considered as a perfectly round geometrical object in the 3–D spaces. But the basic difference between the sphere and Circle is that circle is a geometrical shape which is formed on the 2–D planes. A perfect sphere is a shape which has the equal distance from the center Point of the sphere. In mathematics, a sphere can be described as a 3–D surface shape, where all the points have an equal distance from a fixed point which is known as center of the sphere. The shape of sphere has no vertices or no sides.

In the standard definition we can define the sphere as the Set of all points in three dimensional Euclidean spaces, which are located at a distance 'r' form the given point (it means center of the sphere). As like the other geometrical shape, in mathematics various other formulas are provided to calculate the volume of the sphere. Below is shown you the formula of Volume of Sphere:
Volume of sphere = 4 / 3 * ∏ * r³,

Suppose there is a shape of sphere with the radius of 7 inches. The volume of sphere can be calculated by applying the formula of sphere. For the formula of sphere we first need the value of the radius, where radius equal to the 7 inches. After that applying the values of the pi and radius in the formula of sphere, we can easily get the area of sphere.
4 / 3 * 22 / 7 * 7 ³,
= 1436.02 inches³.

Topics Covered in Sphere

TSA of Sphere

posted on: 02 Jun, 2012 | updated on: 31 Aug, 2012

A Sphere is a three dimensional object which has shape like a round object. Every Point of a sphere is at fix distance from the center of a sphere because it has round shape.
Now we will see some properties of a sphere which are given below:
1. It is a perfectly symmetrical object.
2. In a sphere no vertices and edges are present.
3. Shape of a sphere is not like polyh...Read More

LSA of Sphere

posted on: 02 Jun, 2012 | updated on: 31 Aug, 2012

A three dimensional object which has a shape like a round ball is known as Sphere. So by the definition of sphere we can say that every Point of a sphere is at fix distance from the center.
Some properties of a sphere is also defined which are given below.
1. Sphere is a perfectly symmetrical object.
2. No vertices and edges are present in a sphere.
3. Shape of a sphe...Read More

Volume of Sphere

posted on: 18 Apr, 2012 | updated on: 31 Aug, 2012

Sphere can be defined as a round 3 dimensional geometrical object; example of Sphere is ‘earth’. Just like a Circle sphere also has radius which is the distance from Centre of sphere to the surface of sphere. All points on surface of circle are at equal distance from the centre of sphere.
The formula for calculating volume of sphere was given by ‘Archimedes’. The volum...Read More