+An **ellipse** is a closed, [Plane curve](/wiki/Plane_curve) where the sum of the distances from any point on the curve to two fixed points ([Foci](/wiki/Foci)) is constant. It is a fundamental shape in [Geometry](/wiki/Geometry), beautifully describing the paths of planets around the sun.
+## See also
+- [Circle](/wiki/Circle)
+- [Parabola](/wiki/Parabola)
+- [Hyperbola](/wiki/Hyperbola)
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