Python Math: Calculate surface volume and area of a sphere

Last update on April 24 2025 12:44:19 (UTC/GMT +8 hours)

6. Sphere Surface, Volume & Area

Write a Python program to calculate the surface volume and area of a sphere.
Note: A sphere is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball.

Python: Surface volume and area of a sphere

A sphere is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball.

In three dimensions, the volume inside a sphere is derived to be V = 4/3*π*r³ where r is the radius of the sphere

The  area of a sphere is A = 4*π*r²

Sample Solution:

Python Code:

pi=22/7
radian = float(input('Radius of sphere: '))
sur_area = 4 * pi * radian **2
volume = (4/3) * (pi * radian ** 3)
print("Surface Area is: ", sur_area)
print("Volume is: ", volume)

Sample Output:

Radius of sphere: .75                                                                                         
Surface Area is:  7.071428571428571                                                                           
Volume is:  1.7678571428571428  

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program that calculates the surface area and volume of a sphere given its radius, and prints both results with explanations.
• Write a Python function that takes the radius of a sphere and returns its volume and surface area, then test it with various radii.
• Write a Python script to compare the calculated volume of a sphere to that of a cube with the same edge length as the sphere’s diameter.
• Write a Python program that generates a random radius, computes the sphere's metrics, and prints the results in scientific notation.

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Python Code Editor:

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