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Triangle: explicitly exclude degenerate triangles #2579

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Aug 12, 2025
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Triangle: explicitly exclude degenerate triangles #2579

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Triangle: explicitly exclude degenerate triangles
IsaacG Aug 12, 2025
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Update exercises/triangle/description.md
iHiD Aug 12, 2025
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5 changes: 5 additions & 0 deletions exercises/triangle/description.md
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Expand Up @@ -13,6 +13,11 @@ A _scalene_ triangle has all sides of different lengths.

For a shape to be a triangle at all, all sides have to be of length > 0, and the sum of the lengths of any two sides must be greater than or equal to the length of the third side.

~~~~exercism/note
We opted to not include degenerate triangles (triangles that violate these rules) in the tests to keep things simpler.
You may handle those situations if you wish to do so, or safely ignore them.
~~~~

In equations:

Let `a`, `b`, and `c` be sides of the triangle.
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