• The order of the angles in a sheet!

 

No clarification about the order of the angles in a sheet, which gives the function. However, when you try to check, it is considered important and does not normally check.
From: https://py.checkio.org/mission/triangle-angles/solve/

Created at: Sept. 30, 2016, 9:53 p.m.; Updated at: Oct. 1, 2016, 8:38 p.m.