Python Program to Calculate the Area of a Triangle

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Python Program to Calculate the Area of a Triangle

Vinay Khatri
Last updated on August 4, 2022

    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

    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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