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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
well, yeah, but it's assumed by the kata's description that the triangle is already valid + it's 8 kyu kata.
The check is reasonable to have, though
This one is missing a validation for values that exceed 180º for the sum of a and b.