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Python: How to calculate area of a triangle in Python?

Python Basic: Exercise-30 with Solution

Write a Python program that will accept the base and height of a triangle and compute the area.

Python: Area of a triangle

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted triangle ABC.

  • Vertex of a triangle: The point at which two sides of a triangle meet.
  • Altitude of a triangle: The perpendicular segment from a vertex of a triangle to the line containing the opposite side.
  • Base of a triangle: The side of a triangle to which an altitude is drawn.
  • Height of a triangle: The length of an altitude.

Python: Area of a triangle

Sample Solution:-

Python Code:

b = int(input("Input the base : "))
h = int(input("Input the height : "))

area = b*h/2

print("area = ", area)

Sample Output: 

Input the base : 20                                                                                           
Input the height : 40                                                                                         
area =  400.0

Flowchart:

Flowchart: Accept the base and height of a triangle and compute the area.

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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