Sphere is a solid 3 dimensional (x-axis, y-axis, and z-axis), geometrical shape, symmetrical circular-shaped object. It does not have any flat surfaces, edges, and vertices. Sphere examples are football, Basket Ball, World Globe, Plants, and more.
Characteristics of a Sphere
A list of Characteristics of a Sphere is given below -
Component of Sphere
A Sphere contains the following components -
Diameter - The longest line that passes through the center of a Sphere is called Diameter. It is denoted by D or d.
Radius - Half of a Diameter is called radius. It is denoted by R or r.
Formulas of a Sphere
The below table shows the three main formulas of a Sphere -
Where, r=radius of a Sphere
π =22⁄7 or 3.14
D = Diameter of a Sphere
A = Area of a Sphere
V = Volume of a Sphere
If the radius of a sphere is 5 cm, then calculate the following:
Radius of a Sphere (r) = 5 cm
(i) Diameter of a Sphere (D) = 2r= 2×5 = 10 cm
(ii) Surface area of Sphere (A) = 4πr2= 4×3.14×5×5 = 314 cm2
(iii) Volume of a Sphere (V) = (4⁄3)πr3
Example 2: Write a C program to calculate the following -
Enter radius of a Sphere 5 Diameter of a Sphere is = 10 Area of a Sphere is = 314.000000 Volume of a Sphere is = 523.333351
Example 2: Write C++ program to calculate Sphere Formulas -
Enter Radius of Sphere : 9 Diameter of Sphere = 18 Area of Sphere = 1017 Volume of Sphere = 3052
Example 3: Write a Java Program to calculate diameter, area, and volume of a Sphere.
Diameter of a Sphere = 14 Area of a Sphere = 616.000000 Volume of a Sphere = 1437.33333333464
Example 4: Write a PHP program to calculate following Sphere formulas -
Diameter of the Sphere = 36 Area of the Sphere = 4073.1428571466 Volume of the Sphere = 24438.857142879