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The Angles of a Triangle solution in Clear category for The Angles of a Triangle by Krzysztof_Dziedzic
from math import cos, acos, degrees
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]
elif a == b == c:
return[60,60,60]
else:
CosAngle1 = (-(c**2) + a**2 + b**2) / (2*a*b)
CosAngle2 = (-(b**2) + a**2 + c**2) / (2*a*c)
CosAngle3 = (-(a**2) + b**2 + c**2) / (2*b*c)
Angle1 = round(degrees(acos(CosAngle1)),0)
Angle2 = round(degrees(acos(CosAngle2)),0)
Angle3 = round(degrees(acos(CosAngle3)),0)
Result = [Angle1, Angle2, Angle3]
return sorted(Result)
#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"
Oct. 13, 2016
