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Python Math: Calculate the volume of a tetrahedron

Python Math: Exercise-64 with Solution

Write a Python program to calculate the volume of a tetrahedron.

Note: In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons) is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces.

Sample Solution:-

Python Code:

import math
def volume_tetrahedron(num):
	volume = (num ** 3 / (6 * math.sqrt(2)))
	
	return round(volume, 2)

print(volume_tetrahedron(10))

Sample Output: 

117.85

Pictorial Presentation:

Python Math: Calculate the volume of a tetrahedron

Flowchart:

Flowchart: Calculate the volume of a tetrahedron

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m