Check whether triangle is valid or not if sides are given in Python

Suppose we have three sides. We have to check whether these three sides are forming a triangle or not.

So, if the input is like sides = [14,20,10], then the output will be True as 20 < (10+14).

To solve this, we will follow these steps −

• sort the list sides
• if sum of first two sides <= third side, then
  • return False
• return True

Let us see the following implementation to get better understanding −

Example Code

Live Demo

def solve(sides):    sides.sort()    if sides[0] + sides[1] <= sides[2]:       return False    return True sides = [14,20,10] print(solve(sides))

Input

[14,20,10] 

Output

True