Using Python programming language only. Write a function forms_triangle(a, b, c)

Question

Using Python programming language only.

Write a function forms_triangle(a, b, c) that returns True if three segments of length a ,  b and  c can form a triangle, otherwise it returns False. You may assume that your function will be tested with  a ,  b and c that are non-negative integers . You are not allowed to use if (or other branching) statements. Here are the details about when 3 numbers (i.e. 3 side lengths) form a triangle. If you are given three sticks, you may or may not be able to make a triangle with them. For example, if one of the sticks is 10cm long and the other two are 1cm long, you will not be able to form a triangle. For any three non-negative numbers, there is a simple test that determines if it is possible to form a triangle with them. It states: “If any of the three numbers is greater than the sum of the other two, then you cannot form a triangle. Otherwise, you can.” Use this test for your function. In mathematics, this fact is known as the "Triangle Inequality".

Explanation / Answer

def isTriangle(sides):
    smallest,medium,biggest = sorted(sides)
    return smallest+medium>=biggest

print isTriangle([10,1,1])

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