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Ellipse perimeter calculation #1

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Merged
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Oct 22, 2025
Merged

Ellipse perimeter calculation #1

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6 changes: 4 additions & 2 deletions geometry/geometry.py
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Original file line number Diff line number Diff line change
Expand Up @@ -103,9 +103,11 @@ def area(self) -> float:
def perimeter(self) -> float:
"""
>>> Ellipse(5, 10).perimeter
47.12388980384689
48.44222344723793
"""
return math.pi * (self.major_radius + self.minor_radius)
a, b = self.major_radius, self.minor_radius
#uses ramanujans approximation
return math.pi * (3*(a + b) - ((3*a + b)*(a + 3*b))**0.5)


class Circle(Ellipse):
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