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cosinus solution in Clear category for The Angles of a Triangle by checinski.szymon
import math
def checkio(a, b, c):
#replace this for solution
if a + b <= c or a + c <= b or b + c <= a:
return [0, 0, 0]
alpha = round(math.degrees(math.acos((a**2 + b**2 - c**2)/(2*a*b))))
beta = round(math.degrees(math.acos((b**2 + c**2 - a**2)/(2*b*c))))
delta = round(math.degrees(math.acos((c**2 + a**2 - b**2)/(2*a*c))))
list = [alpha, beta, delta]
list.sort()
return list
#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"
Nov. 17, 2016
