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Fun with ellipses
Author:
Dave Van Leeuwen
Topic:
Ellipse
F1 and f2 can be dragged, or entered in the boxes. The distance sum is needed. Directrix info can be displayed. Points on circles rotate in opposite directions with the same orbital time. Their midpoint is traced.
GeoGebra
New Resources
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Discover Resources
kjhkjhklhj
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Circle Theorem 7
Circumcentre
Discover Topics
Solids or 3D Shapes
Median Line
Dilation
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Integers