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like on textbook solution in Clear category for The Angles of a Triangle by zcjsword
def checkio(a, b, c):
a,b,c = sorted([float(a),float(b),float(c)])
if a+b<=c: return [0,0,0]
from math import acos,degrees
A = degrees(acos((b*b+c*c-a*a)/2/b/c))
B = degrees(acos((a*a+c*c-b*b)/2/a/c))
C = 180 - A - B
return [round(A), round(B), round(C)]
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio(4, 4, 4) == [60, 60, 60], "All sides are equal"
assert checkio(3, 4, 5) == [37, 53, 90], "Egyptian triangle"
assert checkio(2, 2, 5) == [0, 0, 0], "It's can not be a triangle"
Dec. 10, 2015
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