Python Program to Calculate the Area of a Triangle

By | October 21, 2021
Python Program to Calculate the Area of a Triangle

Heron’s formula is a common way to calculate the area of a triangle. In this Python tutorial, you will learn how to write a simple Python program to calculate the area of a triangle.

Prerequisites to Create The Python Program to Calculate the Area of a Triangle

Algorithm to Find the Area of a Triangle Using Python

  • 1st Step – Ask the user to enter the length of the three sides of the triangle.
  • 2nd Step – Next, calculate the area using Heron’s formula.
  • 3rd Step – At last, use the print function and display the area of the triangle on the screen.

Heron’s Formula

Area of a triangle= √(s(s-a)*(s-b)*(s-c))

Here, s = (a+b+c)/2, and a, b, and c are the length of the three sides of the given triangle.

Python Program to Calculate the Area of a Triangle

import math
a= float(input("Enter the length of first side: "))
b= float(input("Enter the length of second side: "))
c= float(input("Enter the length of third side: "))
s= (a+b+c)/2
area = math.sqrt((s*(s-a)*(s-b)*(s-c)))
print("The area of Triangle is: {0:.2f}".format(area))

Input

Enter the length of first side: 4
Enter the length of second side: 13
Enter the length of third side: 15

Output

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The area of Triangle is: 24.00

Conclusion

In this example, we have used Heron’s formula to calculate the area of the triangle. It is a straightforward program with only a few lines of code. Moreover, to enhance your Python logic-building skill, you can use some other logic to find the area of the triangle. Ensure to share them with the TGB community via the dedicated comments section below.

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