Is It a Triangle?

Create a function that takes three numbers as arguments and returns true if it's a triangle and false if not.

Examples

isTriangle(2, 3, 4) ➞ true

isTriangle(3, 4, 5) ➞ true

isTriangle(4, 3, 8) ➞ false

Notes

• a, b and, c are the side lengths of the triangles.
• Test input will always be three positive numbers.