Ellipse Calculator
Ellipse Area
Calculate ellipse area and an approximate perimeter from semi-major and semi-minor axes.
Method: Area uses piab. Perimeter uses Ramanujan approximation.
Understanding Ellipse Measurements
1. What This Calculator Measures
An ellipse is a stretched circle with a semi-major axis and semi-minor axis.
2. How the Calculation Works
The calculator multiplies the two semi-axes by pi for area and uses Ramanujan's approximation for perimeter.
3. Formula or Rule Used
area = pi x a x b.
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