Area of a Triangle from Three Sides
EasyRead three real numbers a, b, and c, the lengths of the sides of a triangle, and print its area using Heron's formula: s = (a + b + c) / 2 and area = sqrt(s (s - a) (s - b) (s - c)). Print one line in the form area = 6.00, rounded to two decimal places. Before computing anything, check the triangle inequality: if a + b <= c, or b + c <= a, or a + c <= b, print not a triangle and return 1. If the three numbers cannot be read, print invalid input and return 1.
Success Criteria
Your code must pass 6 test case(s) to complete this exercise. 3 hint(s) are available if you need help.
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