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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.
My solutions fails in 3 tests when radius, arc and angle are given and instead of null, in 2 tests solution gives false and in 1 - instead of true gives false