Practice #21: Program to Validate and Calculate Area of a Triangle | Python Coding for Beginners

Description
In this exercise, you'll write a program that takes user input as 3 side lengths of a triangle.
The program then validates if the triangle is valid or not.
If valid, output the triangle area (using Heron formula)
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[makeeverydayezday]

In this exercise we use the Heron formula to calculate area of a triangle: S = sqrt(p * (p-a) * (p-b) * (p-c)) where p = semi-perimeter. Don't forget to check the validity of triangle before calculating the area

[paulshirley]

I very much appreciate your tutorial. I can easily understand Python concepts you cover in this video and apply them in my practice. Thanks so much!

[tsudashiro]

Look like I need to go back to high school 😀. I almost forgot all the basic geometry formula. You helped me a lot mate. Cheers!!!

[JamesAdams-wczl]

Thanks for sharing, I didn't know that, to be valid, the triangle lengths must satisfy that condition. Love your videos!

[mukjunghee]

Well, i didn't know the formula that you can calculate area from 3 side lengths. I only know the formula S = 1/2 x (A x H). Great tips, thank you.