Modify Heron’s Formula

Modify herons_formula.py to include a check to ensure the lengths of sides a, b, and c are valid lengths for a triangle. Raise the appropriate error if they are not.

1. Obviously, triangles cannot have negative side-lengths or side-lengths of 0.

2. Not so obvious, certain length combinations are not possible triangles. For example having side lengths of 100, 1, and 1 wouldn’t create a triangle.

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