Python/maths/arc_length.py
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Update arc_length.py (#8964)
* Update arc_length.py

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Python

from math import pi
def arc_length(angle: int, radius: int) -> float:
"""
>>> arc_length(45, 5)
3.9269908169872414
>>> arc_length(120, 15)
31.415926535897928
>>> arc_length(90, 10)
15.707963267948966
"""
return 2 * pi * radius * (angle / 360)
if __name__ == "__main__":
print(arc_length(90, 10))